5.4H Missing Sides and Composite Shapes

A stop sign is an octagon. Each side is 12 inches long. What is the perimeter of the stop sign?

• 20 in.

• 48 in.

• 72 in.

• 96 in.

The rectangle below has a perimeter of 84 inches. If the length is 28 inches, what is the width?

• 2,016 in.

• 168 in.

• 28 in.

• 14 in.

The rectangle below has an area of 96 square inches. If the length is 12 inches, what is the width of the rectangle?

• 8 in.

• 26 in.

• 216 in.

• 1,152 in.

A rectangular driveway measures 36 feet by 12 feet. What is the area of the driveway?

• 48 square feet

• 96 square feet

• 432 square feet

• 422 square feet

A rectangle has a perimeter of 42 inches and an area of 108 square inches. The rectangle has a width of 9 inches. Which line segment could represent the length of the rectangle?

• 6 in.

• 10 in.

• 12 in.

• 24 in.

A rectangle has a length of 14 inches and a width of 8 inches. Ana divides the rectangle in half. What is the area of each half of the rectangle, in square inches?

• 112 square inches

• 22 square inches

• 56 square inches

• 32 square inches

The perimeter of the rectangle below is 28 inches. What is the area of the rectangle in square inches?

• 9 square inches

• 45 square inches

• 140 square inches

• 252 square inches

Nelly divided the rectangular dollhouse into three sections. The bedroom is a square with a side length of 10 inches. The bathroom is a square with a side length of 7 inches. What is the area, in square inches, of the closet?

• 21 square inches

• 100 square inches

• 30 square inches

• 9 square inches

Saul divided his rectangular backyard into three sections for his birthday party. The soccer section is a square with a side length of 7 meters. The food section is a square with a side length of 5 meters. What is the area, in square meters, of the seating section of Saul’s backyard?

• 10 square meters

• 14 square meters

• 84 square meters

• 35 square meters

A square has a perimeter of 36 centimeters and an area of 81 square centimeters. Which line segment could represent a side of this square?

• 4 cm

• 9 cm

• 18 cm

• 3 cm