Circle Vocabulary

Front

What is the distance from the center of a circle to any point on its circumference?

Back

Radius

Front

What is a line segment that connects two points on a circle and does not pass through the center?

Back

Chord

Front

What is the longest chord in a circle that passes through the center?

Back

Diameter

Front

What is an angle formed by two chords in a circle that share an endpoint on the circle?

Back

Inscribed Angle

Tags

CCSS.HSG.C.A.2

Front

What is the angle whose vertex is at the center of the circle and whose sides are radii?

Back

Central Angle

Front

What is the arc that is less than 180 degrees?

Back

Minor Arc

Front

What is the arc that is greater than 180 degrees?

Back

Major Arc

Tags

CCSS.HSG.C.B.5

Front

What is a part of the circumference of a circle?

Back

Arc

Front

What is the term for a straight line that touches a circle at exactly one point?

Back

Tangent

Front

What is the term for a line segment that joins two points on a circle and passes through the center?

Back

Diameter