Question

A circle has a circumference of 120 meters What is the measure of its radius? Round

to the nearest tenth
circumference - 120 m

a.38.2
b.376.8
c.19.1
d.753.6

Answer 1

C. 19.1

I got this correct on TTM

I hope this helps.

Answer 2

C.) 19.1

Explanation:

`C=2` π
`r`

`120=2*3.14*r`

Divide by pi

`(120)/(3.14)=2r\\ \\38.22=2r`

Divide both sides by 2

`(38.22)/(2) =(2r)/(2) \\\\19.11=r\\\\r=19.1`

Done.