Area of a sector of a circle

1. It is an angle with its vertex at the center of a circle, with its sides containing two radii of the circle1. 

• a. Central angle

• b. Right angle

• c. Inscribe angle

• d. Acute Angle

2. It is an angle formed in the interior of a circle when to chords intersect on the circle.

• a. angle

• a. inscribe angle

• c. vertex

• d. radii

3. It is a region bounded by two radii and an arc of a    circle. In the figure below the shaded part is a sector.

• a. sector of a circle

• b. area of a circle

• c. radii

• d. diameter

 4. It is the longer arc connecting two endpoints on a circle and it has a measure of more that 180 degrees.

• d. chord

• c. semicircle

• a. minor arc

• b. major arc

 5. A line segment extending from the center of a circle or half od diameter.

• a. arc

• b. chord

• c. radius

• d. none of these

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 region? Round to the nearest hundredth.

• 1.26

• 452.39

• 9.42

• 113.10

What is the area of the shaded sector? Round your answer to the nearest hundredth.

• 13.96

• 139.56

• 27.91

• 558.22