Intro to Circles and Circumference

An angle whose vertex is the at the center of a circle.

• Central Angle

• Inscribed Angle

• Obtuse Angle

• Acute Angle

An angle whose vertex lies of the circle and both endpoints lie across the circle.

• Inscribed Angle

• Central Angle

• Angle

• Arc

Tags

CCSS.HSG.C.A.2

The distance from the center of a circle to a point on the circle. Endpoints are the center and a point on the circle.

• Radius

• Circumference

• Diameter

• Segment Length

Tags

CCSS.HSG.C.A.2

The line segment between the center and a point on the circle is called its:

• Radius

• Diameter

• Chord

• Tangent

The distance around a circle is called its:

• Diameter

• Radius

• Circumference

• Area

A circle's major arc is often named with 3 letters.

• True

• False

A line segment between two points on the circle which passes through the center is called a:

• Radius

• Diameter

• Chord

• Tangent

Name the circle!

• Circle A

• Circle B

• Circle C

• Circle D

How many degrees are in a circle?

• 90

• 180

• 270

• 360

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the radius of this circle?

• 18

• 72

• 38

• 14

Tags

CCSS.7.G.B.4