Finding Area of Rectangles

What is the area of a rectangle with a length of 4 units and a width of 3 units?

• 7 square units

• 12 square units

• 15 square units

• 10 square units

Answer explanation

The area of a rectangle is calculated by multiplying the length by the width. Here, 4 units (length) x 3 units (width) = 12 square units. Therefore, the correct answer is 12 square units.

A rectangle has a length of 5 cm and a width of 2 cm. What is its area?

• 10 square cm

• 7 square cm

• 12 square cm

• 15 square cm

Answer explanation

The area of a rectangle is calculated by multiplying its length by its width. Here, area = 5 cm * 2 cm = 10 square cm, which matches the correct answer choice.

What is the area of a rectangle with a length of 6 meters and a width of 4 meters?

• 20 square meters

• 24 square meters

• 30 square meters

• 36 square meters

Answer explanation

To find the area of a rectangle, multiply the length by the width. Here, the length is 6 meters and the width is 4 meters. So, 6 x 4 = 24 square meters, which is the correct answer.

A rectangle has a length of 8 inches and a width of 3 inches. What is its area?

• 24 square inches

• 18 square inches

• 32 square inches

• 28 square inches

Answer explanation

To find the area of a rectangle, multiply the length by the width. Here, area = 8 inches * 3 inches = 24 square inches. Therefore, the correct answer is 24 square inches.

What is the area of this rectangle?

• 21 centimeters

• 42 centimeters

• 108 square centimeters

• 99 square centimeters

Answer explanation

To find the area of a rectangle, multiply its length by its width. If the dimensions are 12 cm and 9 cm, the area is 12 x 9 = 108 square centimeters, making '108 square centimeters' the correct answer.

Cooper used his ruler to measure the side of a square, as shown. What is the area of the square?

• 4 sq. in.

• 8 sq. in.

• 12 sq. in.

• 16 sq. in.

Answer explanation

To find the area of a square, use the formula: Area = side × side. If the side measures 2 in., then Area = 2 in. × 2 in. = 4 sq. in. Therefore, the correct answer is 4 sq. in.

What is the area of this rectangle?

• 4 square units

• 5 square units

• 15 square units

• 20 square units

Answer explanation

To find the area of a rectangle, multiply its length by its width. If the dimensions are 4 units and 5 units, the area is 4 x 5 = 20 square units. Therefore, the correct answer is 20 square units.

What expression can be used to find the area of the UNSHADED portion?

• 3 x 7

• 5 X 7

• 7 X 5

• 3 + 7

Answer explanation

To find the area of the unshaded portion, we multiply the length (3) by the width (7). Thus, the correct expression is 3 x 7, which calculates the area accurately.

Which shape has an area of 18?

• 
• 
• 
• 

What is the area of this rectangle?

• 20 square units

• 24 square units

• 24 units

• 20 units

Answer explanation

To find the area of a rectangle, multiply its length by its width. If the dimensions are 6 units and 4 units, the area is 6 x 4 = 24 square units. Therefore, the correct answer is 24 square units.