Circles Review 7th Grade | Baamboozle - Baamboozle

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circles test review

Study Slideshow

Find the circumference of a circle with a radius of 9.5 inches.

59.66 inches

What is the area of a circle with a diameter of 46 miles?

1,661.06 sq. miles

A farmer has a circular shaped field. Fertilizer costs $0.27 per square yard. How much will the farmer spend to fertilize the field? The diameter of the field is 130 yards.

$3,581.96

What mathematical term do we used to describe segment RO?

radius

Does this situation describe circumference or area? "the distance a bike will go with one turn of the wheel"

circumference

Does this situation describe circumference or area? "the total number of equally sized tiles on a circular floor"

area

Mrs. Rowe is pushing her toddler in a stroller around a lake. The lake is a circle with a diameter of 1.5 miles. How far does Mrs. Rowe walk if she walked all the way around the lake?

4.71 miles

What is the diameter of a circle whose circumference is 13.188 inches?

4.2 inches

Mrs. Miller ordered a pizza with a 10 inch diameter. Mrs. McCheynne ordered a pizza with a 12 inch diameter. What is the difference in area of the two pizzas?

34.54 square inches

Find the area of a circle whose circumference is 15.7 feet. DO NOT ROUND YOUR ANSWER.

19.625 square feet

Find the area of a circle whose circumference is 34.54 inches. DO NOT ROUND YOUR ANSWER.

94.985 square inches

Find the perimeter of the figure.

35.42 units

Find the area of the combined figure.

220.24 square cm

If the length of segment AB is 21 units, what is the length of segment OC?

10.5

What is the formula for circumference of a circle?

Circumference = pi x diameter

What is the formula for area of a circle?

Area = pi x (radius squared)