Circumference and Arc Length

What is a formula for Circumference?

Tags

CCSS.7.G.B.4

Tags

CCSS.HSG.C.B.5

Tags

CCSS.HSG.C.B.5

Tags

CCSS.HSG.C.B.5

The radius of a wheel is 14 inches. What is the distance traveled when the wheel turns around 100 times? (Do not forget your units!)

Answer explanation

Finding the circumference gives you the distance covered by one complete rotation/turn. Then, multiply that number by however many turns there are.

The diameter of the wheel of a car is 45 centimeters. Find the distance it covers in 50 complete turns. (Do not forget your units!)

Answer explanation

Finding the circumference gives you the distance covered by one complete rotation. Then, multiply that number by however many rotations there are.

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