Circle Angles Arcs Vocabulary

If the measure of arc ABC = 210°, what is the measure of ∠AOC?

• 150°

• 100°

• 210°

• 105°

What is the measure of arc JK?

• 55°

• 60°

• 120°

• 135°

This is a picture of ___________.

• Chord

• Diameter

• Radius

• Inscribed Angle

This is a picture of ___________.

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

• Secant
• Diameter
• Radius
• Chord

A minor arc is denoted with only 2 letters. Which of the following statements is also true of a minor arc?

• It forms half a circle.

• It forms a whole circle.

• It measures greater than 180 degrees.

• It measures less than 180 degrees.

A major arc is denoted with 3 letters. Which of the following statements is also true of a major arc?

• Forms half a circle.

• Forms a whole circle.

• Measures greater than 180 degrees.

• Measures less than 180 degrees.

An arc is...

• A line that passes through the center and goes from edge to edge.

• A part of the circumference.

• A boat.

• A line that touches the circle once.

Which best describes segment AB?

• chord

• secant

• tangent

• diameter

How many degrees are in a semicircle?