Question

Solve C = 2Pi r for r .

A. r = Cpi/ 2

B. r = 2C/ pi

C. r = C/ 2pi

D. r = 2pi r

Answer 1

D

Explanation:

Given

C = 2πr ( isolate r by dividing both sides by 2π )

`(C)/(2\pi )` = r → D