MathDB
2016 LMT Individual #14

Source:

April 10, 2016

Problem Statement

Let PP and QQ be points on ACAC and ABAB, respectively, of triangle ABC\triangle ABC such that PB=PCPB=PC and PQABPQ\perp AB. Suppose AQQB=APPB.\frac{AQ}{QB}=\frac{AP}{PB}. Find CBA\angle CBA, in degrees.
Proposed by Nathan Ramesh