area by 2 isosceles triangles of same area (2022 Novosibirsk Oral Geo Oly 8.5)
Source:
September 2, 2023
geometryareaisosceles
Problem Statement
Two isosceles triangles of the same area are located as shown in the figure. Find the angle .
https://cdn.artofproblemsolving.com/attachments/a/6/f7dbfd267274781b67a5f3d5a9036fb2905156.png