equal diagonals in ABCD and a few perpendicular bisectors
Source: Sharygin Geometry Olympiad 2016 Final Round problem 7 grade 8
July 22, 2018
geometryperpendicular bisectordiagonals
Problem Statement
Diagonals of a quadrilateral are equal and meet at point . The perpendicular bisectors to segments and meet at point , and the perpendicular bisectors to and meet at point . Find angle .by A.Zaslavsky