Circle Vocabulary

Front

What is an Inscribed Angle?

Back

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

Front

What is the relationship between the radius and the diameter?

Back

The radius is half the length of the diameter.

Tags

CCSS.7.G.B.4

Front

What is a Radius?

Back

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

Front

What is a Diameter?

Back

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

Front

What is a Chord?

Back

A line segment whose endpoints lie on the circle.

Front

What is a Tangent Line?

Back

A line that touches the circle at exactly one point.

Front

What is a Secant?

Back

A line that intersects the circle at two points.

Front

What is a Central Angle?

Back

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

Tags

CCSS.HSG.C.A.2

Front

What is a Minor Arc?

Back

An arc that is smaller than a semicircle.

Front

What is a Major Arc?

Back

An arc that is larger than a semicircle.