Parts of a Circle

Front

What is a Point of Tangency?

Back

A point where a tangent touches a circle.

Front

What is a Major Arc?

Back

An arc that is greater than a semicircle.

Front

What is a Minor Arc?

Back

An arc that is less than a semicircle.

Front

What is a Diameter?

Back

A segment that passes through the center of the circle and has its endpoints on the circle.

Front

What is a Central Angle?

Back

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

Front

What is an Inscribed Angle?

Back

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

Front

What is a Radius?

Back

A segment from the center of the circle to any point on the circle.

Front

What is a Chord?

Back

A segment whose endpoints lie on the circle.

Front

What is a Secant?

Back

A line that intersects a circle at two points.

Front

What is a Tangent?

Back

A line that touches the circle at exactly one point.