Circumference & Area of Circles

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

Find the circumference of the circle

• 87.82

• 153.86

• 43.96

• 307.72

Find the area of the circle in the picture.

• 34.54 in²

• 69.08 in²

• 379.94 in²

• 254.34 in²

A horse is tethered to a peg at the center of the field. If the length of the rope is 18.3 m (radius), what will be the maximum area the horse can graze?

• 1051.6 m²

• 57.5 m²

• 75.76 m²

• 4206 m²

What is the approximate area of the given circle?

• 94.8 cm²

• 47.4 cm²

• 716 cm²

• 2863.8 cm²

This crop circle has a diameter of 118 ft. What is the approximate area of the crop circle?

• 370.5 ft²

• 43,721.4 ft²

• 10,930.34 ft²

• 185.26 ft²

A DVD has a diameter of 15 millimeters. Which equation would help you determine the area?

• A = 15²π

• A = 2π15

• A = 7.5²π

• A = 15 π

The diameter of the wheel on a bicycle is 24 inches. Which is closest to the circumference of the wheel?

• 25.36 in

• 37.68 in

• 75.36 in

• 452.16 in

What is circumference?

• The distance around a circle.

• The space inside the circle.

• A line from side to side passing through the center.

• A line from the center to the side.

A cathedral window is built in the shape of a semicircle. If the window is to contain three stained glass sections of equal size, what is the area of each stained glass section? Express answer to the nearest square foot. (Hint: the 3 sections together are 1/2 a circle, so each section is how much of the circle?)

• sq. ft

• 13 sq. ft

• 3 sq. ft

• 26 sq. ft