MathDB
2024 Geo Problem 4

Source:

April 15, 2024
geometry

Problem Statement

Let ABCABC be an equilateral triangle with side length 11. Points DD and EE lie on BC\overline{BC} and AC\overline{AC} respectively such that BDE\triangle BDE is right isosceles, while points FF and GG lie on BC\overline{BC} and AB\overline{AB} respectively such that CFG\triangle CFG is right isosceles. Find the area of the intersection of BDE\triangle BDE and CFG\triangle CFG.
Proposed by Ishin Shah