Circle Geometry Review

What is the value of x with a reason?

• $112\degree$

• $56\degree$

• The angle at the center is equal to twice the angle at the circumference.

• The angle at the center is equal to the angle at the circumference.

What is the value of angle D in the given circle? With a reason.
Given:  $Angle\ B\ is\ =27\degree$  

•  $27\degree$  

•  $54\degree$  

• Angle in the same segment.

• Interior angles in a triangle equal  $180\degree$  

Name a chord.

• Segment XC
• Segment KM
• Segment HJ
• LINE BD

If a line segment in drawn from the center of a circle onto a chord, what happens with the chord?

• The chord disappears.

• The chord is bisected.

• The angles are 90 degrees.

• The line from the center is perpendicular to the chord.

If a line is drawn from the center of a circle to the chord and it bisects the chord, what will the relationship between this line and the chord be?

• They will be perpendicular

• They will be parallel

• They will be equal

• The chord will be bisected

A line that intersects a circle at exactly one point

• secant
• circle
• chord
• tangent

Find a.

• 30
• 21
• 60
• 120

Determine y.

• 30
• 60
• 90
• 180

Calculate q.

• 40
• 140
• 128
• 52

Line CE is a perpendicular bisector for line AB.

If line CD is a measure of 6.0 cm, and line AB is a measure of 10.0 cm, what is the length of CF?

• 10 cm

• 6 cm

• 7.8 cm

• 5 cm