MATH 7 UNIT 3 REVIEWER

A 20-inch bicycle has tires with a diameter of 20 inches. What is the circumference of these tires?

• 31.4 inches

• 62.8 inches

• 314 inches

• 1,256 inches

A bicycle tire makes 40 full revolutions while traveling from where Scott is standing to where Steve is standing. If the tire has a diameter of 20 inches, what is the approximate distance between Scott and Steve?

• 12,500 inches

• 5,000 inches

• 2,500 inches

• 800 inches

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

CCSS.7.NS.A.2

CCSS.7.NS.A.3

If a bike wheel covers a total of 69.08 inches after one complete rotation, what is the approximate radius of the bike wheel? (Use 3.14 as an approximation of pi.)

• 22 inches

• 11 inches

• 5 inches

• 4 inches

Tags

CCSS.7.G.B.4

What is the area of the circle with a diameter of 30 meters? (Use 3.14 as an approximation for π)

• 94 square meters

• 189 square meters

• 707 square meters

• 2,827 square meters

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

Arely makes circular flower beds with diameters of 20 inches. What is the approximate area of each flower bed? (Use 3.14 as an approximation for π)

• 62.8 square inches

• 125.6 square inches

• 314 square inches

• 1,256 square inches

A contractor is cutting a circular hole from a square piece of plywood to create an opening for a sink. The piece of plywood is 4 feet by 4 feet. If the contractor cuts a circular hole with a diameter of 2.5 feet, approximately how much plywood is left over? (Use 3.14 as an approximation for π.)

• 4 square feet

• 5 square feet

• 11 square feet

• 20 square feet

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

The front wheel on a cyclist’s bicycle has a radius of 14.5 inches. What is the approximate area of the bicycle’s front wheel? (Use 3.14 as an approximation for π.)

• 45.53 square inches

• 91.06 square inches

• 165.046 square inches

• 660.185 square inches

Tags

CCSS.HSG.GMD.A.1

A round cushion has a radius of 30 inches. What is the approximate area of the cushion?

• 11,304 square inches

• 2,826 square inches

• 707 square inches

• 377 square inches

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

The figure shows a circle inscribed in a square. The area of the square is 144 square inches. What is the area of the circle, to the nearest square inch?

• 19 square inches

• 75 square inches

• 113 square inches

• 452 square inches

Tags

CCSS.7.G.B.4

CCSS.7.G.B.6

The diameter of a dinner plate is shown. What is the approximate circumference of the plate?

• 16 inches

• 33 inches

• 66 inches

• 87 inches

Tags

CCSS.7.G.B.4