Circle Geometry Concepts

Front

A set of points, same distance from a fixed center.

Back

What is a Circle?

Front

The distance from the center to a point on the circle.

Back

What is a Radius?

Front

Endpoints lie on the circle but do not pass through the center.

Back

What is a Chord?

Front

Any chord of the circle that passes through the center.

Back

What is a Diameter?

Front

A line that intersects a circle at only one point, called the Point of Tangency.

Back

What is a Tangent?

Front

A line that intersects a circle at two points.

Back

What is a Secant?

Front

Circles that have the same center but different radii.

Back

What are Concentric Circles?

Front

Circles that have the same measurement of the radii.

Back

What are Congruent Circles?

Front

The set of points that stays in the plane of the circle but is less than the radius.

Back

What is the Interior of a Circle?

Front

The set of points that is greater than the radius.

Back

What is the Exterior of a Circle?