58 VII. CONGRUENT LINES IN A TRIANGLE 3◦. CD, BF are equal to and perpendicular to BI, CI respectively, and their intersection point is also on the altitude from A. Exercise 46. We are given a right angle AOB, and two perpendicular lines through a point P , the first intersecting the sides of the angle in A, B, and the second intersecting the same sides in C, D. Show that the perpendiculars from the points D, O, C to the line OP intercept on AB segments equal to AP , P B, respectively, but having the opposite sense.
Purchased from American Mathematical Society for the exclusive use of nofirst nolast (email unknown) Copyright 2008 American Mathematical Society. Duplication prohibited. Please report unauthorized use to cust-serv@ams.org. Thank You! Your purchase supports the AMS' mission, programs, and services for the mathematical community.
