Question

A 20° sector in a circle has an area of 21.5π yd².

What is the area of the circle?

Use 3.14 for pi.

Enter your answer as a decimal in the box.

__________ yd²

What is the area of a sector with a central angle of 2π/9 radians and a radius of 16.7 ft?

Use 3.14 for π and round your final answer to the nearest hundredth.

Enter your answer as a decimal in the box.

___________ ft²

What is the area of a sector with a central angle of 2π/9 radians and a diameter of 20.6 mm?

Use 3.14 for π and round your answer to the nearest hundredth.

Enter your answer as a decimal in the box.

_______ mm²

What is the area of a sector with a central angle of 8π/11 radians and a radius of 7.2 ft?

Use 3.14 for π and round your final answer to the nearest hundredth.

Enter your answer as a decimal in the box.

____________ ft²

Answer 1

@Hanna