Question

Cal is creating a circular garden for his yard. The radius of the garden is 15 feet. He wants to put fencing around the garden that costs $3.54 per foot. How much will the fencing cost? Explain your steps.

Answer 1

The fence will cost $333.64

Explanation:

In order to calculate how much it'll cost to build the fence around his garden we first need to know the length of material he'll need to buy. To do that we must find the length of the circle that surrounds the garden and then multiply by the price of each foot. The length of the circle is given by:

length = 2*pi*r

length = 2*pi*15

length = 30*pi

length = 94.25 feet

The cost of the fence, is:

cost = length*(cost per foot) = 94.25*3.54

cost = 333.64

The fence will cost $333.64