Area Circumference Central Angles

What is the area of this circle?

• 50.27 cm²

• 78.23 cm²

• 98.12 cm²

• 201.06 cm²

If the measure of arc ABC = 210°, what is the measure of arc AC?

• 150°

• 100°

• 210°

• 105°

Solve for x. 

• 5

• 20

• 40

• 85

Solve for x.

• x = 11

• x = 6

• x = 8

• x = 9

What is the radius of this circle?

• 18in

• 36in

• 9in

• 8in

Steven purchases a bowl. The diameter of the bowl is 14 cm.
What is the distance around the bowl?

• 21.98 cm

• 43.98 cm

• 87.96 cm

• 7 cm

A cruise ship has a large, circular window. It has a diameter of 6 meters. How many square meters of glass is the window made of?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 28.27 m²

If you are going to paint the entire center circle of a basketball court, do you need to know the area or circumference of the circle?

• Area

• Circumference

• Neither

The radius of a circle is 6.5 inches.

Find the circumference of the circle.

• 132.7 in

• 40.8 in

• 20.4 in

• 572.3 in

What is the area of a circle with a diameter of 12cm?

• 452.39cm²

• 139.12cm²

• 113.1cm²

• 84.23cm²