Chapter 4 Review

Determine the circumference of each circle. Use 3.14 for π. Round to the nearest tenth, if necessary.

(Circle with diameter 28.1 yd)

• 88.2 yd

• 88.82 yd²

• 80.2 yd

• 80.2 yd²

Determine the circumference of each circle. Use 3.14 for π. Round to the nearest tenth, if necessary.

(Circle with radius 6 m)

• 35.4 m

• 36.2 m

• 37.7 m

• 38.2 m

A building is 120 meters tall. A scale model of the building uses a scale of 1 centimeter = 6 meters. How tall is the model?

• 10 cm

• 15 cm

• 20 cm

• 25 cm

On a scale drawing, 1/4 inch = 1 foot. What are the dimensions on the scale drawing of a room that is 20 feet by 27 feet?

• 5 inches by 6.75 inches

• 4 inches by 6.5 inches

• 5 inches by 7 inches

• 4.5 inches by 6.75 inches

Mrs. Robert’s vegetable garden is 6 feet wide and 8 feet long. A drawing of the garden has a scale of 1 inch = 2 feet. What is the area of the garden on the scale drawing?

• 12 square inches

• 24 square inches

• 48 square inches

• 96 square inches

Triangle AEU has side lengths of 12, 18, and 24 units. What are the possible side lengths of a triangle similar to triangle AEU?

• 6, 9, 12

• 24, 36, 48

• 8, 12, 16

• 10, 15, 20

A jar of almond butter has a radius of 2.3 inches. What is the circumference of the jar? Use 3.14 for π. Round to the nearest whole number.

• 14 inches

• 15 inches

• 16 inches

• 17 inches

On a map, the scale is 1 inch = 125 miles. What is the actual distance between two cities if the map distance is 4 inches?

• 500 miles

• 400 miles

• 600 miles

• 525 miles

One side of a pattern for a square quilt is 4 inches long. The scale of the pattern is 1 inch = 2 feet. The top of the quilt will be made from two congruent triangular sections joined diagonally. What is the area of one triangular section?

• 8 square feet

• 16 square feet

• 32 square feet

• 64 square feet

The side lengths of a triangle are 3 meters, 4 meters, and 5 meters. Suppose the side lengths are multiplied by 4. Describe the change in the perimeter.

• The perimeter is multiplied by 4.

• The perimeter is multiplied by 2.

• The perimeter remains the same.

• The perimeter is multiplied by 16.