Tangents of a Circle

• 12.1
• 9.9
• 16
• 18.8

• 3
• 10
• 6
• 7

A tangent is a line that _______. 

• passes through the center of the circle

• intersects the circle at two points

• intersects the circle at one point

• follows the circumference of a circle

Is line AB tangent to the circle?

• YES

• No

• Can't be determined 

Is line AB tangent to the circle?

• YES

• NO

• Not Enough Info

Find x.  Assume that segments that appear to be   tangent are tangent.

• 11.2

• 18.0

• 25.0

• 30.0

 QS is a tangent to circle P.  Solve for PR.

• 5

• 8

• 13

• 12

QS is a tangent to circle P.  Find QS.

• 144

• 14

• 12

• 13

Find x.  Assume that segments that appear to be   tangent are tangent.

• 2

• 11

• 7.6

• 9

What can you conclude?

• AB and AC are not congruent.

• AB= half of AC

• AC = half of AB

• AB=AC