Geometry Area and Circumference

Find the circumference and area of the circle, using π. If necessary, round to the nearest tenth.

r = 4.7 ft

Find the perimeter of the figure. Include the units in your answer.

Find the perimeter of the figure. Include the units in your answer.

An 8-ft-by-10-ft rug leaves 1 ft of the bedroom floor exposed on all four sides. Find the perimeter of the bedroom floor.

Find the area of the semicircle. Round you answer to the nearest hundredth.

• 18.84

• 9.42

• 56.52

• 113.04

Find the area of the three-quarter circle. Round you answer to the nearest hundredth.

• 314.00

• 235.50

• 58.88

• 47.10

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.

• 10.5 sq. in.

• 31.4 sq. in.

• 38.2 sq. in.

In circle O, the radius is 4, and the measure of minor arc AB is 120 degrees. Find the length of minor arc AB to the nearest integer.

• 5

• 9

• 8

• 6

FIND THE ARC LENGTH OF THE BOLDED ARC

• A

• B

• C

• D

Find the area:

• 32 in²

• 12 in²

• 32 in

• 4 in²