Question

Olga is installing a fence around her circular pool. The radius of the pool is 7 feet. How many feet of fencing material will she need? [ Use pi = 22/7] *

Answer 1

Ok, to find the feet of fencing material that she need we need to calculate the perimeter of the circle.

We are going to use the folling formula:

$\text{Perimeter}=2\pi r$

So, replacing:

$\text{Perimeter}=2(\frac{22}{7})\cdot7$$=\frac{44}{7}\cdot7=44$

She need 44 feet of fencing material.