Find Radius with Circumference of

Q1. What is the distance from the center of a circle to its edge?

• A) center

• B) diameter

• C) radius

What is the radius?

• 18

• 72

• 38

• 14

What is the circumference?

• 36

• 18pi

• 108pi

• 36pi

Find the radius of circle with a circumference of 12.6 mi. Use 3.14 for pi.

• 5 mi

• 4 mi

• 8 mi

• 2 mi

Mathematical Equivalence

ON

• 5 meters

• 10 meters

• 15 meters

• 20 meters

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

The distance around the wheel of a truck is 9.42 feet. What is the radius of the wheel?

• 3 feet

• 1.5 square feet

• 1.5 feet

• 29.58 square feet

The circumference is 62.8 inches.  What is the radius?

• 20 inches

• 10 inches

• 6.28 inches

• 31.4 inches

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.