Lesson 32, Part 5

A quadrilateral has side lengths of 4 feet, 8 feet, and 3 feet. Its perimeter is 21 feet. How long is the unknown side?

• 8 feet

• 3 feet

• 6 feet

• 7 feet

What is the perimeter of a square if the area is 81 square feet?

• 40 feet

• 18 feet

• 36 feet

• 324 feet

The pentagon has side lengths of 2 cm, 3 cm, 8 cm, and 3 cm. The perimeter of the pentagon is 28 cm. Jackson said that the length of the missing side is 11 cm. Is he right or wrong.

Annie drew a rectangle that has a length of 7 cm and a width of 6 cm. What is the perimeter of the rectangle?

• 26 cm

• 42 cm

• 24 cm

• 38 cm

Megan has 32 feet of fencing to put around a rectangular section of her garden. What could be the length and width of the garden?

• 8 feet and 6 feet

• 9 feet and 7 feet

• 11 feet and 5 feet

• 12 feet and 3 feet

• 8 feet and 8 feet

Which choices are examples of perimeter?

• grass covering a backyard

• the border around a picture

• carpet in a room

• the fence around a park

• the amount of water in a swimming pool

Caroline said that all rectangles with a perimeter of 14 meters, have the same area. Is she correct? Why or why not?

The perimeter of a hexagon is 54 inches. The lengths of the sides are 8 inches, 12 inches, 18 inches, 4 inches, and 3 inches. What is the length of the last side?

• 4 inches

• 10 inches

• 6 inches

• 9 inches

The area of a rectangle is 54 square centimeters. The length is 9. What is the width?

• 9 centimeters

• 6 centimeters

• 8 centimeters

• 4 centimeters

The perimeter of a rectangle is 42 inches. The width is 12 inches. What is the length?

• 9 inches

• 10 inches

• 18 inches

• 12 inches