Question

A trundle wheel is used measuring distances. The circumference of the wheel is exactly 1 m. Each time the wheel rotates through one complete turn a click sound is heard and a counter adds a meter to the total. What is the radius of this wheel?

Answer 1

Explanation:

`C=2\pi r`

`1=2\pi\time r`

`r=(1)/(2\pi)` ( divided both sides of equation by
`2\pi`)

`r\approx 16cm`

The wheel's radius is approximately 16cm.