Chapter 13 Answers
... 19. Isosceles nABC with vertex A is circumscribed
about circle O, and D, E, and F are the points of
tangency of AB, BC, and AC, respectively. By the
isosceles triangle theorem, /DBE > /FCE. If
two tangents are drawn to a circle from an
external point, then the line segment from the
center of the cir ...