Area and Side Lengths of Squares, Irrational and Rational

Find the area of a square if its side length is 40 inches.

• 20 square inches

• 80 square inches

• 1,600 square units

Find the length of the side of a square if its area is 81 square units.

• 9 units

• 20.25 units

• 40.5 units

• 81 units

Find the area of a square if its side length is 3 inches.

• 9 square inches

• 6 square inches

• 1.73 square inches

A square has an area of 81 square feet. Select all the expressions that equal the side length of this square, in feet.

• 9

• 3

The square pool of Sammie's gym has an area of 144 square feet. What is the length of one side of the pool?

• 144

• 12

• 12.348

• 72

Ms. Flores paints a square-shaped section of a fence with an area of 75 square feet. What is the approximate side length of the section she paints?

• 8.1 ft

• 8.3 ft

• 8.6 ft

• 8.9 ft

If a square has an area of 36 square inches, what is the length of each side?

• 9 inches

• 6 inches

• 4 inches

• 18 inches

If I know the area of a square, how do I find the side length?

• I square the area.

• I divide the area by 2.

• I take the square root of the area.

• I divide the area by 4.

A square picture has an area of 63 square inches. To the nearest tenth of an inch, what is the side length of the picture?

• 4 inches

• 7.9 inches

• 15.8 inches

• 31.5 inches

What is the side length of a square that has an area of 121?

• 11

• 60.5

• 30.25

• 14641