Area, Perimeter, Circumference

Presentation

•

Mathematics

•

8th Grade

•

Hard

Joseph Anderson

FREE Resource

7 Slides • 17 Questions

Area and Circumference of Circles

Multiple Choice

How are you doing today?

Great

Wonderful

Awesome

Splendid

Multiple Choice

What does a circle look like?

Multiple Choice

What would be the perimeter of a square with side lengths of 5? What would the area be?

Perimeter 20; Area 20

Perimeter 20; Area 25

Perimeter 25; Area 25

Perimeter 10; Area 20

Area and Perimeter?

Multiple Choice

What is the perimeter/area?

Perimeter 32; Area 26

Perimeter 26; Area 32

Perimeter 26; Area 40

Perimeter 40; Area 26

Important Parts of a Circle

Radius- the distance between the center of the circle and any point on the circle itself
Diameter- the distance between any two points on a circle which crosses through the center of the circle
Circumference- the distance around a circle
Area- the amount of space enclosed by the circle

Multiple Choice

Which of the following is most similar to the circumference of a circle?

Area

Perimeter

Volume

Surface Area

Multiple Choice

Which of the following is true about the diameter of a circle?

It is always half of the radius

It is always twice the radius

It is always equal to the circumference

It is always twice the circumference

Circumference and Area Formulas for a Circle

Multiple Select

Which of the following represents the formula for the circumference of a circle? (Select two)

$C=2\pi r$

$C=\pi r$

$C=\pi d$

$C=2\pi d$

Find the area and circumference of the circle

Multiple Choice

Could the following dimensions exist for a circle? Radius=8 and Diameter=12

Yes

Multiple Choice

If my radius is 10ft, what is my diameter?

20ft

5ft

31.4ft

62.8ft

Multiple Choice

Does this picture show the diameter or radius of a circle?

Diameter

Radius

Multiple Choice

Kevin is buying a cover for his circular swimming pool. If the diameter is 22 feet, how much material will it take to cover the pool? Use 3.14 for pi.

69.08 ft²

379.94 ft²

34.54 ft²

Multiple Choice

What is the circumference of a circle with a diameter of 19.1 ft? Use 3.14 for Pi.

60.00 ft

35.17 ft

28.67 ft

47.17 ft

Open Ended

Given that the circumference of a circle is 100, what is the radius and the diameter?

Type response here

Given the area of a circle is 78.5, what is the diameter of that circle?

Multiple Choice

Given the area of a circle is 153.86, what is the diameter of that circle?

3.5

Multiple Choice

Find the circumference of the circle whose area is 64 $\pi$

$16\pi$

$8\pi$

Open Ended

Find the area of the circle whose circumference is 6 $\pi$

Type response here

Homework for Tonight 3/30/21

Circles on Google Classroom

Poll

How well do you understand the material from today?

Perfect

Good

Bad

Literally not at all

Area and Circumference of Circles

Show answer

Auto Play

Slide 1 / 24

SLIDE

Similar Resources on Wayground

18 questions

Integer Exponents

Presentation

•

8th Grade

20 questions

Approximating Square Roots

Presentation

•

8th Grade

20 questions

Topic 7-8 Transversals, Angles and Parallel Lines

Presentation

•

8th Grade

20 questions

Transformation Review

Presentation

•

8th Grade

20 questions

Graphs of Quadratic Function

Presentation

•

8th Grade

19 questions

Approximating Imperfect Square Roots

Presentation

•

8th Grade

19 questions

Pythagorean Theorem

Presentation

•

8th Grade

19 questions

Linear Equations Intro

Presentation

•

8th Grade

Popular Resources on Wayground

10 questions

Safety Day 2026 – Student Review

Quiz

•

9th Grade

21 questions

Continents and Oceans

Quiz

•

6th Grade

20 questions

Parts of Speech

Quiz

•

5th Grade

16 questions

Subject & Predicate

Quiz

•

5th Grade

25 questions

Multiplication Facts

Quiz

•

5th Grade

12 questions

Map Skills

Quiz

•

3rd Grade

22 questions

Continents and Oceans

Quiz

•

5th Grade

15 questions

Rounding Decimals

Quiz

•

5th Grade

Discover more resources for Mathematics

20 questions

Rational and Irrational Numbers

Quiz

•

8th Grade

20 questions

Add and Subtract Integers

Quiz

•

6th - 8th Grade

20 questions

Slope from a Graph

Quiz

•

8th Grade

15 questions

Adding and Subtracting Integers

Quiz

•

6th - 8th Grade

20 questions

Proportional vs. Non-Proportional

Quiz

•

8th Grade

14 questions

finding slope from a graph

Quiz

•

8th Grade

24 questions

Explore Rigid Transformations and Congruence

Quiz

•

8th Grade

13 questions

Finding slope from graph

Quiz

•

8th Grade