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Circumference and Area of Circles

Circumference and Area of Circles

Assessment

Presentation

Mathematics

7th Grade

Medium

CCSS
7.G.B.4

Standards-aligned

Created by

Isaac Garcia

Used 19+ times

FREE Resource

4 Slides • 10 Questions

1

Circumference and Area of Circles

By Isaac Garcia

​Circles

2

What is Circumference

Distance around the circle

LEARN SOMETHING

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3

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4

Formulas We will use for circles

​C = 2πr or C= πD

Area = πr2

​π = 3.14 - sometimes we use 3

Some text here about the topic of discussion

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5

Multiple Choice

Question image
Which expression could be used to find the approximate circumference of the quilt piece?
1
2(pi)16
2
2(pi)8
3
2(8)
4
2(4)

6

Multiple Choice

Question image
What is the diameter?
1
8
2
16
3
10
4
4

7

Multiple Choice

Question image
Which method could be used to find the radius of the circle formed by the pinwheel as it spins?
1
Divide 9 inches by 2
2
Divide 9 inches by pi
3
multiply 9 inches by pi
4
multiply 9 inches by 2

8

Multiple Choice

Question image
What is the circumference?
1
48
2
96
3
24
4
18

9

Multiple Choice

Question image
What is the radius?
1
18
2
72
3
38
4
14

10

Multiple Choice

Question image
Find the area of the circle below.
1
100 cm
2
225 cm
3
9 cm
4
28.26 cm

11

Multiple Choice

Question image
What is the area of this circle?
1
163.2
2
15.3
3
124.2
4
113.04

12

Multiple Choice

Question image
What is the area of this circle?
1
201.06
2
50.24
3
123.12
4
94.43

13

Multiple Choice

Question image
What is the area of this circle?
1
82.13
2
78.5
3
314.16
4
170.12

14

Multiple Choice

Question image
What is the radius of this circle?
1
12cm
2
6cm
3
24cm
4
3cm

Circumference and Area of Circles

By Isaac Garcia

​Circles

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