Question 1

Find the circumference of the circle: r = 8cm

Accepted Answer

50.24

Answer

24

Answer

18

Answer

96

Question 2

Find the circumference of the circle: d = 36 ft

Accepted Answer

113.04

Answer

12.56

Answer

36

Answer

56.52

Question 3

Find the radius of the circle: d = 36 ft

Accepted Answer

18

Answer

14

Answer

72

Answer

38

Question 4

Find the diameter of the circle: r = 8 cm

Accepted Answer

16

Answer

8

Answer

10

Answer

4

Question 5

What does "circumference" mean?

Accepted Answer

distance around a circle

Answer

line from one side of a circle to another

Answer

space a circle takes up

Answer

line from center of circle to side

Question 6

Find the circumference (to the nearest whole number)

Accepted Answer

88 in

Answer

116 square in.

Answer

44 in

Answer

none of the above

Question 7

What is the circumference of a circle with a diameter of 1 inch? Use 3.14 for pi.

Accepted Answer

3.14 inches

Answer

6.28 inches

Answer

31.4 inches

Answer

62.8 inches

Question 8

How much does pi stand for?

Accepted Answer

3.14

Answer

4.31

Answer

1.34

Answer

3.41

Question 9

What is the circumference of this circle?

Accepted Answer

37.68 cm

Answer

68.4 cm

Answer

3.14 cm

Answer

24 cm

Question 10

A bicycle tie has a diameter of 27 inches. What is the circumference of the tire?

Accepted Answer

84.78

Answer

42.39

Answer

27.18

Answer

13

Question 11

Daniel wants to buy cookies for her friend. The radius of the cookie is 5 inches. What is the cookie's circumference?

Accepted Answer

31.4 in.

Answer

15.7 in.

Answer

10 in.

Answer

2.5 in.

Question 12

What is the circumference of the circle? r = 22 in.       d = 44 in.

Accepted Answer

138.16 in.

Answer

2.5 in.

Answer

125.23 in.

Answer

222 in.

Question 13

The radius of the circle is 9 meters. What is the circle's circumference?

Accepted Answer

9 meters

Answer

56.52 meters

Answer

18 meters

Answer

28.26 meters

Question 14

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

Accepted Answer

diameter

Answer

radius

Question 15

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

Accepted Answer

Radius

Answer

Diameter

Question 16

A bicycle tire has a diameter of 20 inches. How many inches is one full revolution of the wheel?

Accepted Answer

62.8 in.

Answer

125.6 in.

Answer

1256 in.

Answer

31.4 in.

Question 17

Other than the formula C=πd, what is another formula for circumference of a circle

Accepted Answer

C=2πr

Answer

C=2π

Answer

C=πd²

Answer

C=πr²

Question 18

Radius: 7 yards                   Circumference ?

Accepted Answer

43.96

Answer

14

Answer

153.86

Answer

21.98

Question 19

If my diameter is 19 inches, what is my radius?

Accepted Answer

9.5 inches

Answer

119.32 inches

Answer

38 inches

Answer

59.66 inches

Question 20

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

Accepted Answer

20 ft

Answer

5 ft

Answer

31.4 ft

Answer

62.8 ft

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