Area of a Circle and a Sector Answers

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.

3 units3.4 units✔ 9.4 units19 units

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

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

Timothy built a base for a circular tabletop. The base can support a tabletop with a radius of at least 6 inches, but not more than 23 inches. What is the smallest possible area of the tabletop that will fit on Timothy’s table base? Round the answer to the nearest whole square inch. ⇒ 113 square inches What is the largest possible area of the tabletop that will fit on Timothy’s table base? Round the answer to the nearest whole square inch. square inches

1122121217

What is the area of the shaded sector rounded to the nearest whole number?[___] units²

1928 57 113

5 7 2857

12162236

Which statement is true regarding the two shaded sectors of circle O? Explain.

Approximately how much fabric of each color will be needed to make a single parachute canopy?

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

What is the ratio of the sector area to the area of the entire circle?

If the radius is doubled, what is the effect on the area of sector XYZ?

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

What is the sector area created by the hands of a clock with a radius of 9 inches when the time is 4:00?

Which statements are true? Check all that apply.

1122✔ 121217