MathDB
area, 2 equal rectangles (2022 Novosibirsk Oral Geo Oly 7.5)

Source:

September 2, 2023
geometryrectanglearea

Problem Statement

Two equal rectangles of area 1010 are arranged as follows. Find the area of the gray rectangle. https://cdn.artofproblemsolving.com/attachments/7/1/112b07530a2ef42e5b2cf83a2cb9fb11dfc9e6.png