Area of a Circle and a Sector

Question 1

What is the area of the shaded sector?

Revolt · Accepted Answer

C: 72π

Question 2

An individual head of a sprinkler system covers a circular area of grass with a radius of 25 feet. The yard has 3 sprinkler heads that each cover a circular area with no overlap. What is the approximate total area that will be watered?

Revolt · Accepted Answer

D: 5890.5 ft²

Question 3

The ratio of the measure of the central angle to the entire circle measure is .

Revolt · Accepted Answer

B: 1/2

Question 4

Which statements are true? Check all that apply.The ratio of the measure of the central angle to the measure of the entire circle is .The ratio of the measure of the central angle to the measure of the entire circle is .The area of the sector is 250 units².The area of the sector is 100 units².The area of the sector is more than half of the circle’s area.

Revolt · Accepted Answer

A: The ratio of the measure of the central angle to the measure of the entire circle is .; C: The area of the sector is 250 units².; E: The area of the sector is more than half of the circle’s area.

Question 5

The area of the entire circle is π units2.

Revolt · Accepted Answer

C: 36

Question 6

The area of the sector is π units2.

Revolt · Accepted Answer

B: 18

Area of a Circle and a Sector Answers

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