Central Angles, Inscribed Angles, Circumscribed Angles and Properties of Tangents

Which segment is a radius?

• LM

• DC

• BD

• ML

Which segment is not a radius?

• CA

• CB

• CD

• LM

What best describes segment AB?

• chord

• secant

• tangent

• diameter

What is the longest chord in a circle?

• Radius

• Tangent line

• Semicircle

• Diameter

An angle in a circle with vertex on the center of the circle.

• Central angle

• Angle

• Inscribed angle

• Circle

Find the measure of the central angle if the intercepted arc is 56 degrees.

• 124

• 106

• 23

• 56

Find the measure of the intercepted arc if the central angle is 138 degrees.

• 69°

• 42°

• 138°

• 276°

An angle in a circle with vertex on the circle itself.

• Angle

• Central angle

• Inscribed angle

• Chord

Which number best represents an inscribed angle?

• 1

• 2

• 8

• 9

Find the measure of the intercepted arc.

• A

• B

• C

• D