Question

A contractor is building a circular swimming pool. The radius of the circle 12 feet. He needs to know the

circumference in order to buy tile to put around the edge of the pool.
What is the circumference if he uses n=2217 ?

Answer 1

75.41 ft

Explanation:

This problem is on the mensuration of flat shape, a circle.

we know that the circumference of a circle is expressed as

`C= 2\pi r`

Given that radius = 12 ft

The circumference can be solved for by substituting the value of r in the formula

C=2*3.142*12

C= 75.408ft

to 2 d.p the circumference is 75.41 ft