10.7 Special Segments in a Circle Two Chords seg1 x seg2 = seg1 x seg2 Two Secants outer segment x whole secant = outer segment x whole secant Secant and Tangent outer segment x whole secant = tangent squared *Add the segments to get the whole secant

E D A F 2 chords: AO x OB = DO x OC 2 secants: EF x EG = EH x EI H O C I B G

A D Secant and Tangent: AD x AB = AC x AC C B

A. Find x.

B. Find x.

A. Find x.

B. Find x.

Find x.

Find x.

LM is tangent to the circle. Find x. Round to the nearest tenth.

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