Content Check Area of Circles and Sectors

Find the arc length.  Leave your answer in terms of π.

• 7/4π

• 7/2π

• 1/8π

• 45π

Name the circle part shown in green

• Sector

• Arc

• Segment

• Radius

A Circle has a radius of 4.  What is the circumference of the circle? (Best Choice)

• 4π or about 12.56

• 16π or about 50.24

• 2π or about 6.28

• 8π or about 25.12

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

What is the area of the shaded sector?

• 221π/36

• 3757π/72

• 3757π/18

• None of these

What is the area of the shaded sector?

• 40π/9

• 400π/9

• 80π/9

• 1600π/9

What is the area of the shaded region? Leave your answer as an exact value.

• 25π - 50

• 25π - 100

• 5π - 50

• 5π - 100

What is the area of the green shaded segment?

• 16π - 64

• 8π - 32

• 8π - 64

• 16π - 32

What is the area of the shaded segment?

• 32π/3 - 2√3

• 32π/3 - 16√3

• 16π/3 - 16√3

• 32π/3 + 16√3

Try - it, find the area of the segment of the circle.

• 192π - 12√3

• 384π - 144√3

• 192π - 144√3

• 384π - 12√3