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Area & Perimeter

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Area of a Rectangle & Square

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what is area

What is area?

Mar 26, 2019

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What is area?. The amount of space that a figure encloses The number of square units that covers a shape or figure. It is two-dimensional It is always answered in square units. Area of a square. S is the side Area= side x side A= s x s. Find the area of a square using the formula.

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What is area? • The amount of space that a figure encloses • The number of square units that covers a shape or figure. • It is two-dimensional • It is always answered in square units

Area of a square • S is the side • Area= side x side • A= s x s

Find the area of a square using the formula • To find the area of a square, multiply the side x side • Area = side x side • Area = 3 m x 3 m • The area is 9 m2 3 m 3 m

Area of a rectangle • b is the base • h is the height • Area= base x height • A= b x h • You may also see this as A = l x w (Area = length x width)

Find the area of the rectangle using the formula • To find the area of a rectangle, multiply the length x width. • Area= length x width • The length= 6 m • The width=2 m • Area=6 x 2 • The area is 12 m2 6 m 2 m

Area of a triangle • B is the base • H is the height • Area= ½ x base x height • A= ½ x b x h

Find the area of the triangle using the formula Area = 1/2 x base x height A= 1/2 x b x h A= 1/2 x 8 x 5m A= 1/2 x 40 square meters A= 20 square meters The area is 20 m2 5 m 8 m

Area of a parallelogram Do Re Mi • b is the base • h is the height • Area= base x height • A= b x h

Find the area of parallelogram using the formula Area = base x height A= b x h A= 4 x 3 A= 12 square units The area is 12 units2

What is the area of this figure? • It is a square • Formula for the area of a square is side x side • Side= 17 m • Area= 17 x 17 • A= 289 m2 17 m. 17 m

What is the area of this figure? It is a triangle Formula for the area of a triangle is A = ½ x base x height 4 cm 13 cm Base= 13 cm Side= 4 cm Area= ½ x 13 x 4 A= 26 cm2

What is the area of this figure? It is a parallelogram Formula for the area of a parallelogram is A = base x height Base= 3 units Height= 6 units Area= 6 x 3 A= 18 units2

What is the area of this figure? • It is a rectangle • Formula for the area of a rectangle is length x width • Length= 8m • Width= 3 m • Area= 8 x 3 • A=24 m2 8 m 3 m

What is the area of this figure? • It is a square • Formula for the area of a square is side x side • Side= 12 cm • Area= 12 x 12 • A= 144cm2 12 cm 12 cm

What is the area of this figure? • It is a triangle • Formula for the area of a triangle is ½ x base x height • Base= 8 m • Side= 5 m • Area= ½ x 8m x 5 m • A=20 m2 5 m 8 m

What is the area of this figure? It is a parallelogram Formula for the area of a parallelogram is A = base x height Base= 5 units Height= 5 units Area= 5 x 5 A= 25 units2

What is the area of this figure? It is a rectangle Formula for the area of a rectangle is A = length x width Length= 13 cm Width= 4 cm Area= 13 x 4 A= 52 cm2 13 cm 4 cm

What is the area of this figure? 7 cm It is a rectangle Formula for the area of a rectangle is A = length x width Length= 16 cm Width= 7 cm 16 cm Area= 16 x 7 A= 112 cm2

Do you remember the formula for the area of a circle? For a circle, the area is: A = Πr2 = Π x 52 =78.54 cm2

What about unusual / composite shapes? This shape can be divided into two rectangles. Find their areas and add them together. Area 2= l x b = 4 x 6 = 24 cm2 Area 1= l x b = 8 x 20 = 160 cm2 Total area = A1 + A2 = 160 + 24 =184 cm2

Try another one: In this case, a measurement needs to be found before you begin. 7 m A2 = 15 x 7 =105 cm2 A1 = 5 x 8 =40cm2 Total area = A1 + A2 = 40 + 105 = 145 cm2

What did you learn? • What is area? • How are the units of area usually expressed? • How many dimensions is area? • What does the “S” mean in the formula for the area of a square? • What is the formula for the area of a square? • What is the formula for the area of a rectangle? • What does the “h” stand for in the formula for the area of a triangle?

More… • What is the formula for the area of a parallelogram? • What does the “b” stand for in the formula for the area of a triangle? • What does the “h” stand for in the formula for the area of a rectangle? • What is the formula for the area of a rectangle? • What are the four formulas we have learned today?

Closure: Remember Formulas! • Square: A = s x s • Rectangle : A = b x h • Triangle: A = ½ x b x h • Parallelogram: A= b x h • Circle: A = π x r2

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Area, Surface Area & Volume

Area, Surface Area & Volume

Subject: Mathematics

Age range: 14-16

Resource type: Worksheet/Activity

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Last updated

22 February 2018

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HEALTH MATTERS

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Stanford scientists share practical prevention tips for inflammation, cognitive health, and heart disease at Health Matters

The Bay Area community was out in full force on Saturday, May 18, for Stanford Medicine’s annual free community health event, Health Matters . Held outdoors on the medical school campus, more than 1,500 attendees gathered to listen to health talks and explore interactive exhibits at a health pavilion staffed by professionals from Stanford Medicine and Stanford Health Care.

In the three health talks, Stanford Medicine physician-scientists spoke to a full-capacity crowd about their latest research and practical tips to fight inflammation with food, maintain brain resiliency, and improve cardiovascular health. Another 500-plus people tuned in via livestream.

Food’s protective power against inflammation

Inflammation is an appropriate adaptive response, signaling the body to fight off infection or heal an injury. But when the body is in a state of chronic inflammation, it can contribute to obesity, cardiovascular disease, Alzheimer's, diabetes, depression, autoimmune disease, and even cancer. Remarkably, fighting inflammation begins in the kitchen, according to the day's first speaker.

Tamiko Katsumoto, MD, discusses food as medicine at Health Matters. Photo by Steve Fisch.

Tamiko Katsumoto, MD, discusses food as medicine at Health Matters. Photo by Steve Fisch.

“The biggest driver of chronic inflammation is something we have control over, and that is our diet,” said Tamiko Katsumoto , MD, clinical associate professor of medicine–immunology and rheumatology. There is an epidemic of chronic disease in the United States. Currently, 6 out of 10 adults have one chronic disease, with the primary driver being poor nutrition. The standard American diet, comprised of ultra-processed foods and animal products, is now the leading cause of poor health. Switching to a plant-based diet can help quell inflammation if it’s already started and reduce the chances of developing chronic inflammatory diseases, said Katsumoto. It can also help reduce the growing rates of obesity in our country. “Plant-based diets can be extremely powerful, and food can be medicine.”

Aiming for a whole-food, plant-based diet is not just good for overall health; it’s also good for the planet—a cause Katsumoto is equally passionate about. “If the world's two billion consumers cut their meat and dairy consumption by 40%, it would save the land area two times the size of India and avoid 168 billion tons of greenhouse gas emissions,” Katsumoto said.

Brain power

“We are in an explosion of brain science,” said Frank Longo , MD, PhD, the George E. and Lucy Becker Professor of Medicine and professor of neurology and neurological sciences. “For centuries, the brain has been a black box where scientists did not know what was going on in the brains of living people. During the past few years, technologies have become available that are rapidly changing that reality.

New imaging technology, coupled with omics—the ability to measure thousands of genes and proteins in the blood or spinal fluid—gives scientists a once-impossible view of living people's brains. “This revolution in neuroscience has yielded advanced methods for detecting and treating brain disorders than were previously imaginable just a few decades ago,” said Longo. These technologies have opened the door to new insights and strategies to help increase brain resiliency.

Frank Longo, MD, PhD, discusses breakthroughs in neurological sciences. Photo by X.

Frank Longo, MD, PhD, discusses breakthroughs in neurological sciences. Photo by Steve Fisch.

While there is no current curative treatment for the most common forms of cognitive decline—dementia, Lewy body dementia, and Alzheimer’s—there are several lifestyle changes people can make to improve brain resilience and function, including exercise, diet, cognitive engagement, and sleep. Longo said exercise has the most profound impact, reducing the risk of developing Alzheimer’s by 50%.

What researchers have discovered is that neurodegenerative diseases such as Alzheimer’s are the result of multiple factors—amyloid plaques, Tau tangles, and neuro-inflammation—and, as such, require powerful drugs that address multiple mechanisms. Cognitive decline also begins decades before symptoms occur. In his health talk, Longo discussed two promising new therapies being studied to reduce the progression of dementia. The first, a new compound developed by the Longo Lab, normalizes abnormal proteins that accumulate in the spinal fluid 10 to 20 years before Alzheimer’s disease starts. Results of first-in-human trials show that taking this drug early could delay the onset of Alzheimer's by 10 years, potentially eliminating 90% of cases, he said. The drug is scheduled to undergo a major Phase 3 trial at multiple centers across the United States in the next 12 to 18 months. He also mentioned an ongoing clinical trial at Stanford to study an amyloid reduction antibody treatment.  

Improved imaging, novel blood tests and biomarkers, and robust clinical trials continue to illuminate the biology of the brain and provide hope for new treatments that will prevent or slow down the onset of Alzheimer’s and other neurodegenerative diseases.

Protecting your heart

In a Q&A-style talk,  Joseph Wu , MD, PhD, the Simon H. Stertzer, MD, Professor of Medicine, director of the Stanford Cardiovascular Institute, professor of medicine–cardiology and of radiology, and current president of the American Heart Association, shared his expertise on a variety of heart health topics, ranging from wearables technology to weight loss medications, current CPR guidelines, supplements, and the indispensable role of exercise and diet in maintaining cardiovascular health.

Joseph Wu, MD, PhD, discusses how to improve heart health. Photo by X.

Joseph Wu, MD, PhD, discusses how to improve heart health. Photo by Steve Fisch.

To help reduce the risk of heart disease, Wu highlighted four modifiable lifestyle changes everyone can implement—exercise, sleep, avoiding tobacco, and diet. Monitoring disease risk factors, specifically LDL cholesterol, high blood pressure, diabetes, and body mass index (BMI), is also critical for patients and their clinicians in managing cardiovascular health. For patients with high cholesterol, Wu said the gold standard treatment continues to be statins, a drug that blocks the liver from synthesizing cholesterol. “Statins are very effective and very safe,” said Wu, who takes one himself to control his cholesterol.

While statins remain a vital tool in a cardiologist’s arsenal, weight loss is the next frontier. Wu addressed the benefits of medications known as GLP-1 agonists, such as Ozempic and Wegovy, which work to tell your brain you’re full, slow down your gut so you feel full, and reduce glucose. When taken over three years by patients with a history of heart attack, stroke, or peripheral artery disease, these medications were shown to lower the risk of recurrence of these conditions by 20%. “Reducing body weight by just 10 to 20% dramatically improves your cardiovascular health,” Wu said.

Another area of increasing attention in cardiovascular medicine is the advent of wearable devices that track exercise, heart rate, and sleep. Wu noted that these modern smartwatches and rings can provide patients and physicians with objective health data and even help detect cardiac abnormalities.

Watch all three health talks in full  here .

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Safeway removes self-checkout at Bay Area stores following shoplifting spike

by RAY LEWIS | The National Desk

A Safeway grocery store is shown, Wednesday, July 14, 2021, in Redmond, Wash. (AP Photo/Ted S. Warren)

OAKLAND, Calif. (TND) — Safeway has removed self-checkout machines at several stores in the San Francisco Bay Area following a rise in theft, according to KRON .

The supermarket chain is reportedly removing the machines to crack down on shoplifting.

Operational changes have been made at select stores throughout the Bay Area given the increasing amount of theft,” Safeway told the outlet. “Those updates include adjustments to the front end of the store to deter shoplifting.”

The chain is one of several companies to adjust operations in Bay Area stores to combat shoplifting. In February, Fredericksen Hardware & Paint reportedly instituted a strategy where employees accompanied customers while they shop.

“Like other local businesses, we are working on ways to curtail escalating theft so we can ensure the wellbeing of our employees and foster a welcoming environment for our customers,” Safeway told KRON. “These long-planned security improvements were implemented with those goals in mind.”

Safeway did not immediately return The National Desk’s request for comment.

READ MORE | San Fran businesses using magicians to lure people back downtown: 'Throwing spaghetti'

Earlier this year, California State Sen. Lola Smallwood-Cuevas, D-Los Angeles, introduced legislation aimed at limiting employees' responsibilities in stores with self-checkout machines.

The Retail Theft Prevention and Safe Staffing Act, or SB 1446, would prohibit grocery or drug stores from having a self-checkout option unless employees are free from other job duties and there is a 2-to-1 machine-to-employee ratio.

While it’s crucial to adapt to new technologies, protecting jobs and worker safety must be prioritized in the process,” State Sen. Smallwood-Cuevas said. “SB 1446 will protect workers and the public by ensuring safe staffing levels at grocery and drug retail stores and regulating self-checkout machines.”

The lawmaker argued poor and “working” communities have experienced the brunt of retail theft, which has created a more unsafe environment.

“While some of the largest retailers have already recognized that these problems have begun to limit the ability for them to have safe environments and make the revenues that they need, they’ve decided to eliminate self-checkout machines entirely from their stores,” she said. “But, too many have not.”

In January, a Richmond, California, Walmart restricted access to some items to curtail shoplifting.

“Those determinations are made on a store-by-store basis,” the retailer told The National Desk. “Walmart will continue to explore additional ways to protect its merchandise ... and keep product in stock for the millions of customers it serves each week.”

Follow Ray Lewis on X for trending national news @rayjlewis or send a tip to [email protected] .

EBR interim superintendent proposes new pay raises for faculty, staff

BATON ROUGE, La. (WAFB) - The East Baton Rouge Parish School System has proposed a new pay raise for all staff that are on teacher salary schedule.

The following is a statement from the East Baton Rouge Parish School System:

“Teacher recruitment and retention are top priorities for the East Baton Rouge School System. For the 2024-2025 school year, Interim Superintendent Smith proposes a permanent raise of $2,200 for all staff on the teacher salary schedule, increasing the starting salary for beginning teachers from $47,800 to $50,000. Additionally, a raise of $1,500 is proposed for all principals and assistant principals, and $1,300 for all other staff.”

RELATED: EBR Schools budget proposal doesn’t make the grade for teacher, support staff pay during board presentation

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IMAGES

  1. Area and Perimeter Powerpoint

    presentation on area

  2. Introduction to Area PowerPoint

    presentation on area

  3. PPT

    presentation on area

  4. AREA OF A RECTANGLE & SQUARE a Powerpoint Presentation by Amber Pasillas

    presentation on area

  5. Area and Perimeter Lesson Presentation Year 7 / 8

    presentation on area

  6. Area Rectangle Square Parallelogram Google Slides

    presentation on area

VIDEO

  1. Area Packaging

  2. Presentation 2(Graph area and volume of a region)

  3. Calculus Presentation(Second Moment of Area)

  4. Finding the Area and Perimeter of a Shape!

  5. Math presentation for calculating area under the curve DBM20023

  6. Booth's Bookshop

COMMENTS

  1. Area and Perimeter

    That is an excellent question! Perimeter = add all sides together P = h + w + h + w P = 6 + 5 + 6 + 8 P = 25 cm 5 cm 6 cm 6 cm 8 cm 6 Learn to music. Perimeter and Area I can calculate perimeter of all objects and area of quadrilaterals. HTML view of the presentation.

  2. Area & Perimeter

    Area & Perimeter. Apr 22, 2010 • Download as PPT, PDF •. 162 likes • 184,598 views. M. mlimon. A PowerPoint presentation of Perimeter & Area for 4th and 5th grade. Education. 1 of 19.

  3. Intro to area and perimeter

    Unit test. Level up on all the skills in this unit and collect up to 1,800 Mastery points! Area and perimeter help us measure the size of 2D shapes. We'll start with the area and perimeter of rectangles. From there, we'll tackle trickier shapes, such as triangles and circles.

  4. PPT

    Area & Perimeter Triangles: The height is the shortest distance from a base to the opposite vertex height (h) height (h) base (b) base (b) The base of a triangle can be any one of its sides A = ½bh. Area & Perimeter Example 1: Triangles • Find the area of the triangle. A = ½bh • A = ½ (8) (5) A = 20 sq cm. Area & Perimeter Example 2 ...

  5. Free PowerPoint Presentations about Area & Perimeter for Kids ...

    Area or Perimeter? pdf format. Finding the Perimeter - Take a walk around the edge. Free Clipart. Free Templates. Lots of Lessons - Math. Pete's PowerPoint Station is your destination for free PowerPoint presentations for kids and teachers about Area & Perimeter, and so much more.

  6. Area

    Area = 15 ½ square units. 15. Letter A has: 14 whole squares 2 half squares (2 halves make 1 whole square) Area = 14 + 1 square units = 15 square units. 16. This shape has: 20 whole squares 12 half squares (2 halves make 1 whole square) 12 half squares = 6 whole squares Area = 20 + 6 square units = 26 square units.

  7. Area and Perimeter.

    Download presentation. Presentation on theme: "Area and Perimeter."—. Presentation transcript: 1 Area and Perimeter. 2 First we need to find he length of each side by counting the squares. 8 cm The distance around the outside of a shape is called the perimeter. 6 cm 6 cm 8 cm The perimeter of the shape is = 28cm.

  8. Introduction to Area Instructional Slide Deck

    Download a Ready-Made Instructional Slide Deck for Finding Area! This teaching slide deck will help you teach your students about finding the area of a rectangle or square in an engaging, exciting way that will make them want to learn more. The deck includes 22 slides with embedded checks for understanding and turn-and-talk opportunities.

  9. Introduction to Area PowerPoint

    This lovely PowerPoint presentation is the perfect introduction to Area for your class. It includes the learning objective 'I am learning to find the area of a shape', as well as information about what Area is, how we measure it, and some fun Area challenges to complete with your learners. The colourful visuals on our PowerPoint is sure to engage your learners and help them to understand ...

  10. Area of a Rectangle & Square

    A triangle is half the area of a rectangle. To find the area of a triangle you use the rectangle formula and divide it in half. A = base x height 2 6 m 8 m A = 8 x 6 = 24 m2 2. 6 Area of Polygons #6 The Area of a figure is the number of square units needed to cover it. Rectangle Parallelogram Triangle 7 4 8 7 5 5 10 8.

  11. PPT

    What is area?. The amount of space that a figure encloses The number of square units that covers a shape or figure. It is two-dimensional It is always answered in square units. Area of a square. S is the side Area= side x side A= s x s. Find the area of a square using the formula. Download Presentation. square units.

  12. Perimeter & area presentation

    Perimeter & area presentation. Sep 28, 2013 •. 27 likes • 50,633 views. R. rodriguezbrenda. To find the perimeter and area of rectangles and square. Education Technology. 1 of 16. Download now.

  13. Calculate the Area PowerPoint

    This area PowerPoint contains 33 slides of maths problems to demonstrate how to calculate the area of different shapes. There are fifteen unique questions, but they come in two forms: one with in-built grid lines to help children count out the boxes to find the answer, and one without them for an extra challenge! The resource is fully interactive, so a button at the beginning allows you to ...

  14. Area and Perimeter PowerPoint- KS3/GCSE

    Area and Perimeter PowerPoint- KS3/GCSE. A comprehensive set of slides in PowerPoint that puts the concepts into context and gives simple investigations for learners to try. Some teaching, some learning. Report this resource to let us know if it violates our terms and conditions. Our customer service team will review your report and will be in ...

  15. Perimeter and Area

    Perimeter. A perimeter is a path that surrounds an area. The word comes from the Greek peri (around) and. meter (measure). The term may be used either for. the path or its length - it can be thought of as. the length of the outline of a shape. The. perimeter of a circular area is called its.

  16. Introduction to Area

    Introduction to Area - PowerPoint. Subject: Mathematics. Age range: 7-11. Resource type: Other. File previews. ppt, 509.5 KB. A PowerPoint used to introduce a Year 4/5 class to calculating area, including a differentiated mental oral starter. Tes classic free licence. See more.

  17. Perimeter And Area

    The perimeterofra closed plane figure is the length of its boundary. 8cm 7cm IOcm 8cm 15cm _ 15 +8+7 = 48cm. Rectangle L- 8cm p=l+b+l+b o Square L=6cm p = 6+6+6+6 p=l+l+l+l = 41 or 4s b Triangles c a. Area is the space within the boundary ora figure. —Areaofpa ra I I elog ra m height! base Area of parallelogram=basexheight.

  18. PowerPoint 101: The Ultimate Guide for Beginners

    Microsoft PowerPoint is a presentation design software that is part of Microsoft 365. This software allows you to design presentations by combining text, images, graphics, video, and animation on slides in a simple and intuitive way. Over time, PowerPoint has evolved and improved its accessibility to users.

  19. Volume and Surface Area

    Download the "Volume and Surface Area - Math - 8th Grade" presentation for PowerPoint or Google Slides. If you're looking for a way to motivate and engage students who are undergoing significant physical, social, and emotional development, then you can't go wrong with an educational template designed for Middle School by Slidesgo! This ...

  20. Basic tasks for creating a PowerPoint presentation

    Select the text. Under Drawing Tools, choose Format. Do one of the following: To change the color of your text, choose Text Fill, and then choose a color. To change the outline color of your text, choose Text Outline, and then choose a color. To apply a shadow, reflection, glow, bevel, 3-D rotation, a transform, choose Text Effects, and then ...

  21. What Are Effective Presentation Skills (and How to Improve Them)

    Presentation skills are the abilities and qualities necessary for creating and delivering a compelling presentation that effectively communicates information and ideas. They encompass what you say, how you structure it, and the materials you include to support what you say, such as slides, videos, or images. You'll make presentations at various ...

  22. Delphos couple escapes serious injury in fatal crash

    Allen County Museum plans presentation on exhibit. Area D-III boy athletes excel. Area D-III girls kick off the state track meet. Today in History: May 31, the Johnstown Flood kills more than 2,000.

  23. Area, Surface Area & Volume

    PPT aimed at GCSE foundation - covering area of rectangles, triangles, parallelograms, trapezia. Area and circumference of circles. Volume of prisms including cuboids and cylinders. Complete with learner example booklet and short topic test on surface area & volume. to let us know if it violates our terms and conditions.

  24. Scientists share practical prevention tips for inflammation, cognitive

    The Bay Area community was out in full force on Saturday, May 18, for Stanford Medicine's annual free community health event, Health Matters. Held outdoors on the medical school campus, more than 1,500 attendees gathered to listen to health talks and explore interactive exhibits at a health pavilion staffed by professionals from Stanford Medicine and Stanford Health Care.

  25. Safeway removes self-checkout at Bay Area stores following shoplifting

    OAKLAND, Calif. (TND) — Safeway has removed self-checkout machines at several stores in the San Francisco Bay Area following a rise in theft, according to KRON. The supermarket chain is reportedly removing the machines to crack down on shoplifting. Operational changes have been made at select stores throughout the Bay Area given the increasing amount of theft," Safeway told the outlet.

  26. EBR interim superintendent proposes new pay raises for faculty, staff

    For the 2024-2025 school year, Interim Superintendent Smith proposes a permanent raise of $2,200 for all staff on the teacher salary schedule, increasing the starting salary for beginning teachers ...