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Circles: Circumference Review

Authored by Kelly Larsen

Mathematics

6th - 8th Grade

Used 3+ times

Circles: Circumference Review
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for finding the circumference of a circle in terms of the diameter?

Circumference = 2 * pi * radius

Circumference = pi * diameter

Circumference = 2 * pi * diameter

Circumference = 2 * diameter

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for finding the circumference of a circle in terms of the radius?

Circumference = 2 * pi * diameter

Circumference = 2 * diameter

Circumference = pi * diameter

Circumference = 2 * pi * radius

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Find the circumference of the circle.

31.4 cm

78.5 cm

314 cm

15.7 cm

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

10 in
2.5 in
15.7 in
31.4 in 

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

A circular swimming pool is 21 feet in diameter. What is the circumference of the pool?

10.5 ft
42 ft
65.97 ft
131.95 ft

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Find the circumference (to the nearest whole number)

88 in
44 in
116 square in
None of the above

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jayne has a very large circular lollipop that has a circumference of 25.12 inches. What would the diameter of Jayne’s lollipop be? Use π = 3.14.

4 in.

8 in.

12 in.

16 in.

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