Ball, W. W. Rouse (Walter William Rouse), 1850-1925 · London, Macmillan and Co., limited · leaf 90
[CH. IV 66 GEOMETRICAL RECREATIONS each line has 10 white tiles and 6 black tiles, and in the re¬ maining rows and columns each line has 6 white tiles and 10 black tiles. Such an arrangement, where the difference between the number of white and black tiles used in each line is constant, and equal… … An Anallagmatic Isochromatic Pavement . Interesting problems can also be proposed when the tiles are triangular, whether equilateral or isosceles right-angled. Two equal isosceles right-angled tiles of different colours can be put together so as to make a square tile as shown in the margin. We can…
Geometry · Astrology · Space and time · Matter · Magic squares · Mathematical recreations
Internet Archive · University of Illinois Urbana-Champaign · Public domain (published before 1931). Free to use for anything.
