Show A STUDY IN DOMINOES dominoes are just twice as long as they are broad in other cords each consists of two equal squares ar range eight dominoes in a large square containing four little sq lares on each side arrange twelve dominoes in a square containing five little squares on a side and four in a square with three little squares on a side in both fore small squares the second square contains eight dorni noes or 16 small squares the third contains four dominoes and a hole or 84 19 squares but 20 Is the sum of 16 and 9 and so you have proved the geometrical law that the square ot the hypothec or longest side of a right an aled triangle is equal to the sum of showing the Geo metreal domino figures of these last cases a hole equal to one little square or half domino Is left in the center it you put three large squares to gether as in the picture sou will see that they a right angled tri angle one side of each large square forming a side of the triangle now the largest square contains twelve dominoes and a bole and there the squares of the other two sides it is also possible to select and ar range the dominoes so that the num ber of points in the largest square shall be equal to the sum of the points in the other two squares as shown in the corner diagram this however has nothing to do with geom etry |