Geometry Terms

Front

Radius

Back

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

Front

Chord

Back

A line segment with both endpoints on the circle.

Front

Diameter

Back

A chord that passes through the center of the circle, equal to twice the radius.

Front

Circumference

Back

The total distance around the circle.

Front

Sector

Back

A region of a circle bounded by two radii and the arc between them.

Front

Segment

Back

A region of a circle bounded by a chord and the arc connecting its endpoints.

Front

Arc

Back

A portion of the circumference of a circle.

Front

Back

Radius

Front

Back

Arc