Question

If C = 2πr and C = 24, what is the value of r? A. r = 12π B. r = 242π C. r = 48π D. r = 48π

Answer 1

Explanation:

C = 2πr

24 = 2πr

24/2 = πr

12 = πr

12/π = r

Answer 2

C = 2πr

C = 24

Replace c with 24:

24 = 2πr

Divide both sides by 2:

12 = πr

Divide both sides by π

R = 12/π