Area of Circles, Sectors

What is the area of this circle?

• 4π

• 8π

• 16π

• π

What is the area of this circle?

• 25π

• 10π

• π

• 5π

What is the area of this circle?

• 12π

• 6π

• 144π

• 36π

What is the radius of a circle with an area of 49π?

• 49

• 10

• 7

• 14

Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer as an exact value

• 5π/3

• 10π/3

• 10π

• 40π

What is the area of the shaded region? Round to the nearest hundredth.

• 1.26

• 452.39

• 9.42

• 113.10

What is the area of the shaded region? Round to the nearest hundredth.

• 8π/3

• 2π/3

• 32π/3

• 4π/3

What is the area of the shaded sector?

• 221π/36

• 3757π/72

• 3757π/18

• None of these

What is the area of the shaded sector?

• 40π/9

• 400π/9

• 80π/9

• 1600π/9

What is the area of the shaded region? Leave your answer as an exact value.

• 25π - 50

• 25π - 100

• 5π - 50

• 5π - 100