Area of a Circle and a Sector

Question 1

Which statements are true regarding the area of circles and sectors? Check all that apply.The area of a circle depends on the length of the radius.The area of a sector depends on the ratio of the central angle to the entire circle.The area of a sector depends on pi.The area of the entire circle can be used to find the area of a sector.The area of a sector can be used to find the area of a circle.

Revolt · Accepted Answer

The area of a circle depends on the length of the radius.; The area of a sector depends on the ratio of the central angle to the entire circle.; The area of the entire circle can be used to find the area of a sector.; The area of a sector can be used to find the area of a circle.

Question 2

Question 2

Revolt · Accepted Answer

1,662

Question 3

121✔ 151229380

Revolt · Accepted Answer

229

Question 4

What would make the estimation of the circle’s area more precise?

Revolt · Accepted Answer

What is the approximate circumference of the circle?: 18.8 units; What is the height of the parallelogram?: 3 units; What would be the approximate length of the parallelogram if the base were completely straight?: 9.4 units; breaking the circle into more sectors; 28.3 square units

Question 5

✔ 3 units6 units9 units12 units

Revolt · Accepted Answer

✔ 3 units

Question 6

3 units3.4 units✔ 9.4 units19 units

Revolt · Accepted Answer

✔ 9.4 units

Question 7

✔ breaking the circle into more sectorsbreaking the circle into fewer sectorsincreasing the length of the radiusdecreasing the length of the radius

Revolt · Accepted Answer

✔ breaking the circle into more sectors

Question 8

9.4 square units18.8 square units✔ 28.3 square units37.7 square units

Revolt · Accepted Answer

✔ 28.3 square units

Question 9

1928 57 ✔ 113

Revolt · Accepted Answer

✔ 113

Question 10

5 7 ✔ 2857

Revolt · Accepted Answer

✔ 28

Area of a Circle and a Sector Answers

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