Unit 9: Circles

In a circle (or congruent circles), congruent arcs:

• have congruent chords
• have congruent points
• are twice the measure of their radii
• can climb a hippo

Find the perimeter of the polygon.

• 77.8
• 73.4
• 78.8
• 67.4

Assume that all the lines that appear tangent are tangent. Find the perimeter

• 54
• 36
• 48
• 42

Find the measure of arc AB.

• 17
• 34
• 68
• 146

• A
• B
• C
• D

Solve for the missing angle.

• 45^o
• 90^o
• 22.5^o
• 128^o

Tags

CCSS.HSG.C.A.2

Name a major arc.

• ABD
• BDA
• BCD
• DA

Solve for x. 

• 5
• 20
• 40
• 85

Which is true of a minor arc?

• It forms half a circle.
• It forms a whole circle.
• It measures greater than 180 degrees. 
• It measures less than 180 degrees.

Tags

CCSS.HSG.C.B.5

This is a picture of ___________.

• Minor Arc
• Major Arc
• Semi-Circle
• Central Angle

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.B.5