7th Grade Review

7th Grade Review

Multiple Choice

A bicycle training wheel has a radius of 3 inches. The bicycle wheel has a radius of 10 inches. Approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel?

• 21.98

• 153.86

• 285.04

• 1,142.96

Multiple Choice

A circle has a diameter of 14.5 inches. Using 3.14 for π, what is the circumference of the circle, rounded to the nearest hundredth of an inch?

• 22.77 in

• 45.53 in

• 91.06 in

• 165.05 in

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Multiple Choice

A circle has a radius of 14 inches. Using 3.14 for π, what is the circumference of the circle, rounded to the nearest hundredth of an inch?

• 87.92 in

• 31.4 in

• 2,461.76 in

• 615.44 in

Multiple Choice

A bicycle training wheel has a radius of 5 inches. The bicycle wheel has a radius of 8 inches. Approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel?

• 279.46

• 122.46

• 3.14

• 200.96