2. .Q
.P

3. Tangent Theorem:
­ a tangent to a circle is perpendicular to
the radius at the point of tangency.
­ the tangent segments to a circle from any
external point are congruent.

4. Find the value of x.
A
10
5
O
x P

6. Tangent Chord Theorem:
­ The angle between a tangent and a chord
is equal to the inscribed angle on the
opposite side of the chord.

7. B Find the measure
of angles 1 and 2
2
. E
A 1 O
o
64
o
71 C
D