Question

Find diameter and radius if c = 43m

Answer 1

d ≈ 135.1 m

Explanation:

The circumference formula is:
`C=2\pi r`

In order to solve this, just substitute 43 cm into C, to get:

`43 m=2\pi r`

Divide 43 by 2 times pi to find the radius:

`r=67.54424205`

Then in order to find the diameter, double the number of the radius:

`d=7.54424205`×
`2`

`d=135.0884841 m`

d ≈ 135.1 m