9.0 - Circle Parts

Front

What is a Radius?

Back

A line segment from the center of a circle to any point on its circumference.

Front

What is a Circle?

Back

A set of all points in a plane that are equidistant from a given point called the center.

Front

What is a Chord?

Back

A line 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 a circle at exactly one point.

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 Major Arc?

Back

An arc that is larger than a semicircle.

Front

What is a Minor Arc?

Back

An arc that is smaller than a semicircle.

Front

What is a Semicircle?

Back

An arc that represents half of a circle.