Basic Circles

The distance from the center to the edge of the circle.

• Diameter

• Center

• Radius

• Tangent

When the distance from one point to the next on the circle is exactly 180^o (half of a circle).

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

A segment with 2 endpoints on the circle but does not necessarily go through the center.

• Chord

• Diameter

• Radius

• Inscribed Angle

A chord that passes through the center of the circle is a ________.

• chord

• diameter

• radius

• tangent

What is the measure of ∠PTQ?

• 100°

• 140°

• 180°

• 120°

Tags

CCSS.HSG.C.A.2

Solve for the missing angle.

• 45^o

• 90^o

• 22.5^o

• 128^o

Tags

CCSS.HSG.C.A.2

Name a minor arc

• AD

• ADB

• AB

• CD

Which segment is not a radius?

• CA

• CB

• CD

• LM

What is O?

• diameter

• radius

• center

• chord

What is the measure of angle of a quarter?

• 45

• 90

• 180

• 270

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1