There are just ten different ways of arranging the dominoes. Here is one of them:--
(2--0) (0--0) (0--1) (1--4) (4--0).
I will leave my readers to find the remaining nine for themselves.
From Amusements in Mathematics by Henry Ernest Dudeney.
There are just ten different ways of arranging the dominoes. Here is one of them:--
(2--0) (0--0) (0--1) (1--4) (4--0).
I will leave my readers to find the remaining nine for themselves.