MathDB
Cono Sur Olympiad 2013, Problem 2

Source:

August 22, 2014
geometryincentercircumcircletrigonometryperpendicular bisectorangle bisectorgeometry proposed

Problem Statement

In a triangle ABCABC, let MM be the midpoint of BCBC and II the incenter of ABCABC. If IMIM = IAIA, find the least possible measure of AIM\angle{AIM}.