Circle Vocabulary

Front

A section of the circumference that is more than half of the circle.

Back

Major Arc

Front

This is a picture of ___________.

Back

Central Angle

Tags

CCSS.HSG.C.A.2

Front

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

Back

Diameter

Front

A line that goes through a circle and touches the circle at 2 points.

Back

Secant Line

Front

A segment with 2 endpoints on the circle.

Back

Chord

Front

A line that touches the circle at exactly one point.

Back

Tangent Line

Front

The distance from the center of the circle to any point on the circle.

Back

Radius

Front

An angle whose vertex is at the center of the circle and whose sides are radii.

Back

Central Angle

Front

An angle formed by two chords in a circle which have a common endpoint.

Back

Inscribed Angle

Tags

CCSS.HSG.C.A.2

Front

The longest distance across a circle through its center.

Back

Diameter