Area of Quadrilaterals

A square bulletin board has an area of 20 square feet. If a teacher wants to staple a border on all 4 sides of the board, about how much border will be needed? Round to the nearest tenth (one decimal place).

• 17.8

• 4.5

• 5

• 3

Answer explanation

To find the border length, calculate the square root of the area (20) to get the side length (4.47). Multiply by 4 to get the total border length (17.88), rounded to 17.8.

Arjun has a square-shaped garden with a side length of 9 ft. What is the area of his garden?

• 18 ft^2

• 81 ft^2

• 36 ft^2

The length of a square is x + 2 units.  Find the area.

• 4x + 8 units squared

• x² + 4x + 4 units squared

• x² + 4 units squared

• Not enough information

Mr. Woodside is building a garden outside of Walker-Grant Middle School. He has enough fertilizer to cover 121 square feet. If Mr. Woodside wants to make a square garden, what should the length of each side be?

• 12ft

• 121ft

• 11ft

• 13ft

The area of a square puzzle is 64 square inches. What is the length of the side of the puzzle?

• s = 4 inches 

• s = 8 inches

• s =  16 inches

Mrs. Davis wanted to cover the classroom with new carpet. If the length of the classroom was 12 feet and the width was 8 feet. How much carpet would she need to buy?

• 20 feet

• 40 ft

• 96 square feet

• 40 square feet

Find the area:

• 84 m²

• 168 m²

• 112 m²

• 56 m²

Find the area of the rectangle.

• 36 in.²

• 72 in.²

• 26 in.²

• 13 in.²

Which number represents the height of the parallelogram?

• 2 m

• 1.8 m

• 2.5 m