Hans Walser, [20100824a

Puzzle 4

Except the squares, all polygons can be filled by four kinds of tiles. The tiles have equal area.

Puzzle

Solution 1

Solution 2

Reference

[Deshpande 2009] Deshpande, M. N. : Proof Without Words: Beyond Extriangles. MATHEMATICS MAGAZINE. Vol. 82, No. 3, June 2009, p. 208.