Tangent Properties for Circles

Line segment AB and line segment AD are both tangent to circle C. What is the value of x?

• 4.5

• 5

• 5.5

• 6

Line AB is tangent to circle C. Find the value of x.

• 98.18

• 117

• 153.3

• 108

If a tangent and a radius (or diameter) meet, they are _____________.

(Use your notes!)

If two tangents meet at the same exterior point, the segments are _____.

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

• 11.2

• 18.0

• 25.0

• 30.0

Find the length of the missing segment.

How can we solve for x in this example?

• add both expressions together and subtract from 360

• set both expressions equal to each other

• use Pythagorean Theorem

• use magic

• combine like terms

Find the value of x.

Find the value of x.

• 4.94

• 6.94

• 8.94

• 2.94