Question

If the circumference of the circle in terms of π is:

4x + 8
_______ π cm then find its radius.

5x + 1

Thank You:))

Answer 1

C = 2πr

(4x+8)/(5x+1) π = 2πr
divide by 2π
(4x + 8)/(10x + 2) = r

Answer 2

or, equivalently, since the numerator is 2(2x+4)

r = (2x+4)/(5x+1)