paralellogram construction, 3 midpoints given, 2 of altitudes, 1 of side
Source: 2007 Oral Moscow Geometry Olympiad grades 8-9 p3
October 18, 2020
geometryparallelogramconstructionmidpoints
Problem Statement
Construct a parallelogram , if three points are marked on the plane: the midpoints of its altitudes and and the midpoint of the side .