1. Warm up …Quiz Review 1. Find X 2. Find x and y 3. Find x, y , and z Z X 35 4. Find x and y if lines are tangent 64 32 x X 70 Y y y X 5. Find x if line is tangent to circle O. x O 130

2. Tangents, Chords, and Angles B 6. AB and BC are tangents Find x x A C O 260 8. If m angle xyz = 3y + 40 and m angle xwz = 5y-10. Find the angle xyz. X z y w 7. If m>xyz = 37, find the measure of arc xyz x Y z 10. AB and CD are Parallel. Find x and arc CD 140 A C B 6x + 20 D 9. Find x, y ,z 100 P Q 105 z x 80 75 y 11. Find d A 64 d B C D

3. More practice • Arc BC is 118 degrees. Find angle BAC and BOC. B • A O • C • Find X if the line is tangent to both circles. • R S • T x 120 U 14. Find the value of x, y, z 76 3z-28 104 y z+4 x • Find the measurement of x • x