3rd Math 3.7B (R)

Melinda has a rectangular flower garden. The perimeter of the garden is 20 feet. Which could NOT be the length and width of Melinda’s garden?

• length = 3 ft, width = 7 ft

• length = 2 ft, width = 8 ft

• length = 5 ft, width = 4 ft

• length = 4 ft, width = 6 ft

The perimeter of this bookmark is 30 centimeters. What is the missing length, in centimeters, of the last side?

• 14 centimeters

• 10 centimeters

• 8 centimeters

• 20 centimeters

Chuck helps his dad lay tile on a rectangular floor that is 13 feet long and 18 feet wide. What is the perimeter, in feet, of the floor?

• 62 ft

• 65 ft

• 31 ft

• 52 ft

A triangle has a perimeter of 97 inches. One side is 24 inches long, and another side is 32 inches long. How many inches long is the third side?

• A 56 in.

• B 41 in.

• C 153 in.

• D 31 in.

This figure represents the swimming pool at the State College gym. What is the perimeter of the pool?

• (Student must count the units around the pool shape; answer is not directly provided in the image)

• 10 units

• 20 units

• 50 units

The base of Pam’s bug container is shaped like a rectangle. The length and width of the base are shown. 28 cm (length), 14 cm (width) Write an equation and solve to find the perimeter of the base of Pam’s bug container. Write your answer in the space provided.

• 84 cm (Perimeter = 2 × (28 + 14) = 2 × 42 = 84 cm)

• 56 cm (Perimeter = 2 × (28 + 0) = 2 × 28 = 56 cm)

• 42 cm (Perimeter = 28 + 14 = 42 cm)

• 112 cm (Perimeter = 4 × (28) = 112 cm)

Noah draws a triangle. Each side of Noah’s triangle is 20 inches long. Marcy draws a square with 14-inch sides. What is the difference in the perimeters of these two polygons?

• 16 inches

• 12 inches

• 24 inches

• 8 inches

Tom cuts a triangle with three equal sides. Each side is 29 centimeters long. Which of the expressions can Tom use to determine the perimeter of his triangle?

• 29 × 2

• 29 × 3

• 29 + 29 + 29

• 29 + 29 + 29 + 29

• (29 × 2) + (29 × 2)

This hexagon has a perimeter of 58 inches. Sides: 8 in., 8 in., 11 in., 11 in., 14 in., ? What is the missing length, in inches, of the last side?

• 6 inches

• 4 inches

• 8 inches

• 10 inches