10 triangles and 10 trapezoids , to aseemble a square
Source: V May Olympiad (Olimpiada de Mayo) 1999 L1 P4
September 17, 2022
combinatoricscombinatorial geometry
Problem Statement
Ten square cardboards of centimeters on a side are cut by a line, as indicated in the figure. After the cuts, there are pieces: triangles and trapezoids. Assemble a square that uses all pieces without overlaps or gaps.
https://cdn.artofproblemsolving.com/attachments/7/9/ec2242cca617305b02eef7a5409e6a6b482d66.gif