Circles

The set of all points in a plane that are the same distance from a given point called the center

• Circle

• Circumference

• Inscribed angle

• Sector

The exact middle point of a circle

• Tangent

• Diameter

• Center

• Semicircle

The distance from the center of a circle to any point on the circle

• Arc

• Tangent

• Diameter

• Radius

The distance across a circle through its center

• Central angle

• Diameter

• Chord

• Secant

The distance around a circle

• Circumference

• Radius

• Central angle

• Sector

Part of a circle

• Arc

• Radius

• Chord

• Pi

An arc with a measure between 0 and 180 degrees

• Major arc

• Minor arc

Tags

CCSS.HSG.C.B.5

An arc with a measure between 180 and 360 degrees

• Major arc

• Minor arc

Tags

CCSS.HSG.C.B.5

An arc with a measure of 180 degrees

• Radius

• Tangent

• Semicircle

• Chord

The ratio of the circumference of a circle to its diameter

• Circumference

• Circle

• Diameter

• Pi