Circle Vocabulary

A segment/chord that runs through the center of the circle (the longest chord).

• Chord

• Diameter

• Radius

• Inscribed Angle

A segment with 2 endpoints on the circle.

• Chord

• Diameter

• Radius

• Inscribed Angle

This is a picture of ___________.

• Chord

• Diameter

• Radius

• Inscribed Angle

This is a picture of ___________.

• Chord

• Diameter

• Radius

• Inscribed Angle

This is a picture of ___________.

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

An angle whose vertex (corner) is on the circle.

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

This is a picture of ___________.

• Major Arc

• Minor Arc

• Central Angle

• Inscribed Angle

The long way around a circle that is greater than 180 ^o.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

The short way around a circle that is less than 180 ^o.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

When the distance from one point to the next on the circle is exactly 180^o (half of a circle).

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle