Concentric Circles, Arc

Similar circles that share a common center

• Similar circles

• Congruent circles

• Concentric Circles

• Semicircle

This is a picture of ___________.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

This is a picture of ___________.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

The short way around a circle that is less than 180 ^o.

• Minor Arc

• Major Arc

• Semi-Circle

• Central Angle

Solve for x. 

• 5

• 20

• 40

• 85

Match the following

• 52

• m<1

• 47

• m<2

• 104

• arc EF

Answer explanation

arc EF = Add 58+104+94=256. Then 360 - 256 = 104

m<1 = 94/2 = 47

m<2= 104/2 = 52

Circles that lie in the same plane and have the same center.

• arc

• concentric circles

• central angle

• secant line

A continuous part of a circle between two points on the circle.

• circle

• arc

• circumference

• tangent line

An arc that is smaller than a semicircle.

• radii

• minor arc

• tangent line

• central angle

What is the part of the circle highlighted in red called?

• semi-circle arc

• major arc

• minor arc

• sector