Question 1

What is the formula to find the circumference of a circle?

Accepted Answer

C = πd

Answer

C = πr^2

Answer

C = π

Answer

C = πr

Question 2

What is the distance across the center of a circle?

Accepted Answer

Diameter

Answer

Pi

Answer

Radius

Answer

Circumference

Question 3

What is the distance around a circle called? (the perimeter)

Accepted Answer

Circumference

Answer

Pi

Answer

Diameter

Answer

Radius

Question 4

What is the distance from the outside of a circle to the center?

Accepted Answer

Radius

Answer

Circumference

Answer

Pi

Answer

Diameter

Question 5

What is the ratio of the circumference to the diameter of a circle?

Accepted Answer

Pi

Answer

Diameter

Answer

Circumference

Answer

Radius

Question 6

What is the circumference of the circle? Use 3.14 as π.

Accepted Answer

56.52 inches

Answer

28.52 inches

Answer

28.26 inches

Answer

56.26 inches

Question 7

What is the circumference of the circle? Use 3.14 for π.

Accepted Answer

37.68 centimeters

Answer

37.84 centimeters

Answer

18.68 centimeters

Answer

18.84 centimeters

Question 8

What is the circumference of a circle with a diameter of 4.5 ft?

Accepted Answer

14.13 feet

Answer

7.065 feet

Answer

28.26 feet

Answer

63.585 feet

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