Question

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?

A.18 ft
B.41 ft
C.36 ft
D.9 ft

Answer 1

Answer: C) 36 ft

To solve this equation, we need to fin out how long each side is. To do this, find the square root of 81, since it is a perfect square.

`√(81 ft) = 9 ft`

So now we know that each side is 9 feet, we need to find the perimeter of the square using these dimensions.

9 ft · 4 sides = 36 ft of fencing

Therefore, Ariel needs 36 ft of fencing for her garden.

Answer 2

C)

Explanation:

To find area, You use the equation (Length × Width). If you need to find the perimeter By using the Area, You need to Divide one of the Equal Sides, since it is a square you can use either length or width, So Since it is a square, You Can also use the Square Root method. Square root is basically Dividing the number by the number it was multiplied by.

EX:

9 × 9 = 81

because

81 ÷ 9 = 9

So, If both the Length and width are 9, You add them together to get eighteen. Though since it's a square, You Can't only Count The Half of the Shape, So you multiply that by two, Leaving you with 36