Circle Vocab

Front

Radius of a circle:

Back

Measurement from center to edge.

Front

An arc is...

Back

A part of the circumference.

Front

Diameter of a circle:

Back

Distance from one edge to another through the center.

Front

Point C is...

Back

On the circle

Front

Tangent line of a circle:

Back

A line that touches the circle only once.

Front

Describe segment AB.

Back

Diameter.

Front

Segment with one endpoint at the center and the other on the circle is a __________.

Back

radius

Front

Degrees in a semicircle?

Back

180

Front

A segment with endpoints on a circle is a _______.

Back

chord

Front

Angle with vertex at circle's center is a ______.

Back

central angle