TOT 2014 Spring A J3, areas with intersecting squares
Source:
September 11, 2020
geometrysquareareas
Problem Statement
A square table is covered with a square cloth (may be of a different size) without folds and wrinkles. All corners of the table are left uncovered and all four hanging parts are triangular. Given that two adjacent hanging parts are equal prove that two other parts are also equal.