Area of Rectangles

What is the length of the unknown side?

• 32/4=8

• 32-4=28

• 32x4=128

What is the length of the unknown side?

• 28-4=24

• 28/4=7

• 28x4=112

What are the side lengths of rectangle B?

• 3 units and 6 units

• 18 square units

• 9 square units

• 27 square units

Each side on a sticky note measures 9 centimeters. What is the area of the sticky note?

• 18 cm

• 81 sq cm

• 81 cm

• 18 sq cm

Ellen is comparing two rectangles. • Rectangle P is 5 inches long and 1 inch wide. • Rectangle Q is 4 inches long and 2 inches wide. Which statement correctly compares the areas and perimeters of the rectangles?

• The rectangles have equal areas, and rectangle P has a greater perimeter.

• The rectangles have equal areas, and rectangle Q has a greater perimeter.

• The rectangles have equal perimeters, and rectangle P has a greater area.

• The rectangles have equal perimeters, and rectangle Q has a greater area.

• 1/3

• 2/3

• 3/3

• 4/3

What is the area of this blanket?

• 3 square feet

• 13 square feet

• 26 square feet

• 40 square feet

Each small square has an area of 1 square foot.

Which expression could be used to find the area of the shaded rectangle, in square feet?

• 4 + 4 + 4 + 4

• 4 x 4

• 4 + 6

• 4 x 6

Which statement about these rectangles is true?

• Both rectangles have an area of 26 square units.

• Both rectangles have an area of 40 square units.

• Rectangle X has an area of 13 square units, and Rectangle Y has an area of 40 square units.

• Rectangle X has an area of 40 square units, and Rectangle Y has an area of 28 square units.

Harrison used square tiles to make a different rectangle. Harrison’s rectangle has the same area as Gabrielle’s rectangle. Which measurements describe a rectangle with the same area as Gabrielle’s rectangle?

• 3 units long and 7 units wide

• 8 units long and 3 units wide

• 18 units long and 16 units wide

• 20 units long and 4 units wide