Circle Arc Measure

• A

• B

• C

• D

• A
• B
• C
• D

What is m∠ACB?

• 67.5°

• 90°

• 22.5°

• 45°

How many degrees are in a circle?

• 90

• 180

• 270

• 360

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.

FIND THE SECTOR AREA OUTLINED IN BOLD

• A

• B

• C

• D

The set of all points equidistant (equal distance) from a point.

• arc

• central angle

• circle

• semicircle

An angle whose vertex is the center of a circle

• central angle

• inscribed angle

• minor arc

• major arc

Find the measure of arc AB.

• 17

• 34

• 68

• 146

In the diagram, two chords intersect, forming a vertex in the interior of the circle. Solve for the value of "x"

• 45°

• 50°

• 65°

• 60°