Unit 4b Circles Review

What is the formula for circumference of a circle given the diameter?

• C = π r
• C = 2 π r
• C = π d
• C = 2 π d

The _____ is the distance from the center to any point on the circle.

• diameter
• radius
• π
• center

The distance across a circle through its center is called the _____.

• diameter
• radius
• π
• center

Find the measure of arc AB.

• 17
• 34
• 68
• 146

What is the measure of arc AB?

• 140
• 142
• 180
• 153

What is the measure of arc KL?

• 108
• 106
• 110
• 112

What is the measure of angle DEF?

• 72
• 73
• 74
• 75

Solve for the missing angle.

• 45^o
• 90^o
• 22.5^o
• 128^o

QS is a tangent to circle P. Find QS.

• 144

• 14

• 12

• 13

Find the length of WU

• 5

• 18

• 3

• 11