Circumference

Find the circumference of the circle.

• 14.13 cm

• 63.56 cm

• 28.26 cm

• 127.17 cm

What does d represent in the formula:

C = π·d

• diameter

• radius

• pi

• 3.14

What number represents π?

• 31.4

• 4.13

• 3.14

• 34.1

What does "circumference" mean?

• Space a circle takes up

• Distance around a circle

• Line from one side of a circle to another

• Line from center of circle to side

If my radius is 2 yd what is the circumference?

• 4 yd

• 1 yd

• 12.56 yd

• 6.28 yd

If my diameter is 90cm, what is my circumference?

• 282.6cm

• 180 cm

• 90cm

• 565.2cm

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 

A minute hand (radius) of a clock is 13.8 meters long. What is the circumference of the clock?

• 86.70 meters

• 76.66 meters

• 66.66 meters

• 96.66 meters

What is the circumference of a circle with a radius of 21 cm?

• 131.88 cm

• 121.99 cm

• 111.89 cm

• 141.89 cm

What is the circumference of a circle with a diameter of 56 m?

• 175.8 m

• 176.8 m

• 165.8 m

• 186.8 m