Measure Circles

The distance around a circle is

• Circumference

• Radius

• Center

• Central Angle

A polygon whose vertices are on a circle and whose edges are within the circle

• inscribed angle

• inscribed polygon

• inscribed shape

• inscribed math

Every point on a circle in the same distance from the

• edge

• middle

• center

• radius

An angle whose vertex is on the circumference of a circle and whose sides include chords of the circle

• inscribed polygon

• inscribed angle

• central angle

• inscribed edge

The distance across the circle, through its center

• Radius

• Radii

• Circumferene

• Diameter

An angle whose vertex is the center of the circle

• Inscribed polygon

• central angle

• inscribed angle

• vertex angle

The distance from a circle to its center

• Chord

• Central angle

• circumference

• radius

Two or more circles with the same center

• Concentric circles

• Happy circles

• lots of circles

• center circles

A portion of a circle and its interior bound by an arc and two radii

• Section

• Sector

• Piece of pie

• part of circle

A segment between two points on a circle

• Line segment

• lines

• central angle

• Chord