Circle Length of Arc and Sector

Find the arc length of the circle. (Round your answer to the nearest tenth.)

• 42.4 m

• 21.2 m

• 84.8 m

• 6.7 m

Find the arc length of the circle. (Leave answers in terms of . Do not round your answer.)

What is the area of the shaded sector?

• 40π/9

• 400π/9

• 80π/9

• 1600π/9

Find exact length of the un-shaded part of the circle.

Calculate the circumference of the circle. (Leave answers in terms of \pi. Do not round your answer.)

Which of the following formulas calculates the arc length of a circle? (Select ALL that apply.)

Find the arc length of the circle. (Leave answers in terms of . Do not round your answer.)

Match the answers to the following problems. (HINT: change your answer to decimal)

• Problem 4

• 18.8

• Problem 2

• 5.2

• Problem 1

• 47.1

• Problem 3

• 20.4

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