(135) 4

Part of 1987 Tournament Of Towns

Problems(1)

TOT 135 1987 Spring Train J4 tiles of right triangle with perp. sides 1,2

Source:

We are given tiles in the form of right angled triangles having perpendicular sides of length

1

2

cm. Is it possible to form a square from

20

such tiles?
( S . Fomin , Leningrad)

Tilingcombinatoricscombinatorial geometry