# Perimeter

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## Perimeter Answer Key

1.

Wade built a fence around a rectangular section of his backyard. The length of the section is 20 feet and the width is 5 feet. What is the perimeter of the fenced section?

- 10 feet
- 40 feet
- 50 feet
- 100 feet

2.

What is the perimeter of a square with an area of 16?

- 8
- 10
- 12
- 16

3.

The shape shown has an area of 64 square inches. What is the perimeter?

- 8 inches
- 16 inches
- 32 inches

4.

Which is the formula for finding the perimeter of a rectangle?

- [math]P = 2l + 2w[/math]
- [math]P = pi r^2[/math]
- [math]P = lwh[/math]
- [math]P = 1/2 bh[/math]

5.

The area of the shape shown is 144 inches. What is the perimeter?

- 24 inches
- 144 inches
- 48 inches

6.

What is the perimeter of a rectangle with a length of 10 inches and the width of 5 inches?

- 30 in
- 35 in
- 20 in
- 25 in

7.

A square has a perimeter of 88 feet. What is the area (in square feet) of the square?

- 121
- 484
- 1,936
- 7,744

8.

What is the perimeter of a square whose sides are each 6 inches long?

- 12 in.
- 18 in.
- 24 in.
- 30 in.

9.

The width of the shape is 6 1/2 and the length is 3 1/3. What is the perimeter?

- 19 2/3
- 20 1/2
- 9 3/4

10.

The perimeter of a rectangular garden is 44 ft. Find the length if the width is 8 ft.

- 13 ft
- 14 ft
- 11 ft
- 12 ft

11.

One side of this equilateral triangle is 8 cm long. What is the perimeter of this triangle?

- 8 cm.
- 24 sq. cm.
- 24 cm.
- 64 sq. cm.

12.

A square kitchen has an area of 100 square feet.

What is the kitchen's perimeter?

What is the kitchen's perimeter?

- 50 feet
- 80 feet
- 40 feet
- 4 yards

13.

Side BC measures 9 inches. Side CD is half of side BC. What is the perimeter of this shape?

- 27 inches
- 18.5 inches
- 13.5 inches

14.

The rectangle has a width that measures 100 yards. The length is three times the width. What is the perimeter of the rectangle in yards?

- 400 yards
- 800 yards
- 900 yards

15.

What is the perimeter of a regular hexagon with a side that measures 7 centimeters?

- 42 centimeters

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