Central, Inscribed, and Circumscribed Angles Circles

A central angle has it's vertex _________ the circle

• at the center of

• on

• outside

• inside

Find the measure of the indicated angle.

• 60°

• 120°

• 30°

• 90°

A circumscribed angle has its vertex ____________ the circle

• at the center of

• on

• outside

• inside

An inscribed angle has its vertex __________ the circle

• at the center of

• on

• outside

• inside

• F
• G
• H
• J

• A
• B
• C
• D

• a
• b
• c
• d

What is m∠ACB?

• 67.5°

• 90°

• 22.5°

• 45°

• A
• B
• C
• D

Determine the value of x using the information in the diagram.

• 60º

• 70º

• 80º

• 100º