Chapter 7 Perimeter

Daniel is building a pool in his backyard. The rectangular pool has a perimeter of 18 ft. Daniel draws some possible figures of the pool. He says that figure A and B both have a perimeter of 18 ft. Explain Daniel's mistake!

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Find the perimeter of the figure.

• 32 ft

• 24 ft

• 27 ft

• 28 ft

What is the perimeter of the figure in in.?

• 14 in.

• 15 in.

• 12 in.

• 13 in.

Find the area and perimeter of the figure in square ft.

• Area: 10 square ft.

  Perimeter: 18 ft.

• Area: 18 ft.

  Perimeter: 10 square ft.

• Area: 12 square ft.

  Perimeter: 16 ft.

• Area: 11 sqaure ft.

  Perimeter: 17 ft.

Ana drew this shape on a piece of grid paper.

What is the perimeter of the shape?

• 9 units.

• 13 units

• 14 units

• 7 units

Cianna wants to put wallpaper border around her room. Cianna's room is shown. She will use 36 feet of wallpaper border. What is the unknown side length a?

• 14 feet

• 28 feet

• 6 feet

• 8 feet

Santiago wants to put trim around a picture he drew for mother's day. How many centimeters of trim does he need for the perimeter of the picture?

• 6 centimeters

• 12 centimeters

• 24 centimeters

• 36 centimeters

Valentina uses a ruler to draw a square. The perimeter of the square is 12 centimeters. What is the length of each side of the square?

• 3 centimeters

• 4 centimeters

• 6 centimeters

• 48 centimeters

Noya and Daria gave Ms. Parra a picture with a perimeter of 24 inches. Which picture did they give her?

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Kevin and Vlad used square tiles to make a rectangle. The rectangle has a perimeter of 8 units and an area of 4 square units. Which could be their rectangle?

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