Circle Geometry Terminology

A _________ is a segment in a circle that has endpoints on the circle.

• Radius

• Diameter

• Chord

• Arc

Tags

CCSS.HSG.C.A.2

A __________ is the set of all points equidistant from a common point.

• Circle

• Diameter

• Radius

• Chord

A __________ is a segment that connects the center of a circle to a point on the circle.

• Chord

• Radius

• Diameter

• Arc

Tags

CCSS.HSG.C.A.2

CCSS.HSG.CO.A.1

A __________ is the longest chord in a circle and goes through the center of a circle.

• Diameter

• Arc

• Chord

• Radius

Name the circle.

• Circle R

• Circle T

• Circle S

• Circle L

Tags

CCSS.HSG.C.A.2

Identify a radius.

• RS

• ST

• WL

• RT

Identify a chord.

• RT

• LT

• WL

• LR

Tags

CCSS.HSG.C.A.2

Identify all radii.

• DB, FC, BF

• FC, DF, FB

• EA, DB, FB

• CF, DF, EA

How many chords does the circle contain?

• 0

• 1

• 2

• 3

If AB = 18cm, find AR.

• 18 cm

• 36 cm

• 6 cm

• 9 cm