Question

Ronny’s dad is installing a new pool in their backyard. The pool is a square and has an area of 121 square feet. What is the length of one side of the pool?

Answer 1

The length of each side of the pool is 11 ft.

A square is a quadrilateral (has four sides and four angles) in which all the sides are equal and opposite sides are parallel to each other.

The diagonals of a square are equal to each other and they bisect each other.

Let x represent the length of the pool. Since the pool is a square, hence all the sides of the pool are equal. Given that the area is 121 square feet, hence:

Area of pool = length * length

121 ft² = x × x

121 = x²

x = √121

x = 11 ft.

Therefore the length of each side of the pool is 11 ft.

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