Area of Sector and Length of Arc

Find the area of the dark blue sector shown at the left.  The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units.  Express answer to thenearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

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.

A region bounded by two radii of the circle and their intercepted arc is a ....

• arc of a circle

• arc length of a circle

• sector of a circle

• segment of a circle

Alison is jogging on a circular track that has a radius of 140 feet.  She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

• 47

• 74

• 94

• 123

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Area of a sector =

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )

Length of the arc MN =

Find the length of the arc and area of the shaded region. Round the answer to two decimal places. ( use π = 3.14 )