128k views
2 votes
Ariel's garden is planted in the shape of a square and has an area of 81 square feet. If she plans to put a fence around the perimeter of the garden, how much fencing will she need?

18 ft
41 ft
36 ft
9 ft
PLZ HELP

User VerizonW
by
8.2k points

2 Answers

3 votes
9x9=81
so there is 9 on 2 sides, which is 18 when it gets added together. DONT FORGET ABOUT THE OTHER 2 SIDES!! you have four sides of the square so 9x4=36. I believe the answer is actually 36
User Teaforchris
by
6.9k points
4 votes

Answer:

Option 3 - 9 feet.

Explanation:

Given : Ariel's garden is planted in the shape of a square and has an area of 81 square feet. If she plans to put a fence around the perimeter of the garden.

To find : How much fencing will she need?

Solution :

The area of the garden square is 81 square feet.

The formula of area of square is
A=a^2


81=a^2


a=√(81)


a=9

The side of the square is 9 feet.

The fence around the perimeter of the garden is


P=4a\\P=4(9)\\P=36

So, The fence around the perimeter of the garden is 36 feet.

Therefore, Option 3 is correct.

User GJ Nilsen
by
7.3k points