MathDB
A lot of perpendiculars

Source: Canada 2001

March 4, 2006
trigonometrygeometrycircumcircleperpendicular bisectorangle bisectorgeometry unsolved

Problem Statement

Let ABCABC be a triangle with AC>ABAC > AB. Let PP be the intersection point of the perpendicular bisector of BCBC and the internal angle bisector of A\angle{A}. Construct points XX on ABAB (extended) and YY on ACAC such that PXPX is perpendicular to ABAB and PYPY is perpendicular to ACAC. Let ZZ be the intersection point of XYXY and BCBC. Determine the value of BZZC\frac{BZ}{ZC}.