Trish wants to put a fence around her square garden. The area of the garden is 81 ft². How many feet of fencing does she need?
Fence surrounds a square 9 feet on a side
There are 4 sides.
36
To find how many feet of fencing Trish needs, we need to calculate the perimeter of the square garden. Since we know the area of the garden is 81 ft², we can use this information to find the side length of the square.
The formula for the area of a square is: A = side length × side length
Since the area is 81 ft², we have: 81 = side length × side length
To find the side length, we can take the square root of both sides of the equation: √81 = √(side length × side length)
Simplifying this, we get: 9 = side length
Now we know the side length of the square garden is 9 ft.
To calculate the perimeter of a square, we multiply the side length by 4 since all sides of a square are equal.
Therefore, the total length of fencing Trish needs is: 4 × 9 = 36 ft
Trish needs 36 feet of fencing to put around her square garden.