Area and Circumference of Circles

Front

If my diameter is 19 inches, what is my radius?

Back

9.5 inches

Front

If my radius is 10ft, what is my diameter?

Back

20ft

Front

What is the circumference of this circle? Options: 3.14 cm, 37.68 cm, 24 cm, 68.4 cm

Back

37.68 cm

Front

What is the circumference of a circular rug with a diameter of 9 feet, rounded to the nearest tenth of a foot?

Back

28.3 feet

Front

Landon left a garbage can on the lawn and the grass underneath it died. The diameter of the can is 50 centimeters. What is the area of the grass that died? Use 3.14 for pi.

Back

157 centimeters

Front

What is the result of dividing the circumference of a circle by its diameter?

Back

Front

A wheel has a diameter of 30 centimeters. In one rotation of the wheel, how much distance is covered? Use 3.14 for pi.

Back

94.2 cm

Front

A circle has a diameter of 12 inches. What is the area of the circle? Use 3.14 for pi. Remember, to find the radius, divide the diameter by 2.

Back

113.04 inches²

Front

Which ratio defines pi?

Back

Front

Kevin is buying a cover for his circular swimming pool. If the diameter is 22 feet, how much material will it take to cover the pool? Use 3.14 for pi.

Back

379.94 ft²