Question

A circular swimming pool has a radius of 28 ft. There is a path all around the pool that is 4 ft wide. A fence is going to be built around the outside edge of the pool path.

About how many feet of fencing are needed to go around the pool path? Use 3.14

Answer 1

201 feet

Explanation:

Given:

radius=28 ft

path= 4 ft

radius + path= 28+4

=32

Circumference of circle= 2πr

c = 2 *π* 32

= 200.9

=201!

201 feet of fencing are needed to go around the pool path!

Answer 2

We need approximately 201 ft of fencing

Explanation:

We need to find the circumference of the pool plus the fence

C = 2*pi *r where r is the radius of the pool and the fence

r = 28 +4 = 32

C = 2 * pi * (32)

C = 64 pi

Letting pi =3.14

C = 64*3.14

C =200.96 ft

Rounding to the nearest foot

We need approximately 201 ft of fencing