Question

A circle has a circumference of approximately 113.04 inches. What is the diameter and the radius of the circle.

Answer 1

The diameter of the circle is
`D=36\ in` and the radius is
`r=18\ in`

Explanation:

we know that

The circumference of a circle is equal to

`C=\pi D`

where

D is the diameter of the circle

we have

`C=113.04\ in`

substitute and solve for D

`113.04=(3.14)D`

`D=113.04/(3.14)`

`D=36\ in`

Find the radius r

`r=36/2=18\ in` -----> the radius is half the diameter