Question

The tires on Pablo's bicycle have a radius of 10 inches. Use the appropriate formula model to find the circumference. What is the circumference of a tire? Round your answer to the nearest tenth and include units with your answer.

Answer 1

Circumference is calculated by using
`2\pi r`.

We know that the radius is 10 inches, so let's plug that in.


`2\pi 10 = 20\pi \approx 62.8 \text{in}`