triangle construction, given circumcircle of BHC, A, base of B altitude
Source: 2019 Oral Moscow Geometry Olympiad grades 10-11 p3
May 22, 2019
geometrycircumcircleconstruction
Problem Statement
Restore the acute triangle given the vertex , the foot of the altitude drawn from the vertex and the center of the circle circumscribed around triangle (point is the orthocenter of triangle ).