The area of a square garden is 81 feet. If you want to put a fence on only 3 sides of the garden, how many feet of fence will you need to purchase?
Mathematics · High School · Thu Feb 04 2021
Answered on
Given the statement:
The area of a square garden is 81 feet.
Determine how many feet of fence will you need to purchase if you want to put a fence on only 3 sides of the garden.
Formula for the area of the square:
A = l^2
l = (A)^½
Solution:
We find first the length of each side by substituting the area to the formula for length in terms of area. Then we multiply the asnwer by 3 since we are asked for the 3 sides.
l = (A)^½
l = (81 ft^2)^½
l = 9 ft
l = (9ft)(3)
l = 27 ft
Final answer:
You will need to purchase 27 ft of fence.