Question

The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr ?

Answer 1

To find the formula to find radius, solve for r using the formula for circumference.

to solve:
1. divide each side by 2$\pi$
2. you get r = c/2$\pi$

Answer 2

C= 2\pi r 
r= \frac{C}{\pi} [