Circle Vocabulary and Central Angles

An angle in a circle with vertex ON THE CENTER of the circle

• Central angle
• Angle
• Inscribed angle
• Circle

An angle in a circle with vertex on the boundary of the circle itself

• Angle
• Central angle
• Inscribed angle
• Chord

The inscribed angle is 

What is the measure of the indicated arc?

• 70

• 140

• 35

• 90

Find the measure of arc AB.

• 17
• 34
• 68
• 146

What is the measure of arc FH?

• 70

• 35

• 140

• 88

If the blue angle is 40 degrees, what is the measure of arc PQ?

• 40

• 20

• 80

• 360

Name a diameter.

• CD

• AD

• CA

• GH

What is the name of line IJ?

• tangent

• secant

• diameter

• chord

Solve for x.

• 60

• 180

• 150

• 90