A source book of problems for geometry, based upon industrial design and architectural ornament (1912)
Sykes, Mabel, 1868-, Slaught, H. E. (Herbert Ellsworth), 1861-1937, Lennes, N. J. (Nels Johann), 1874- · Boston, Allyn and Bacon · leaf 176
ions of primitive people.*Among them is the Chinese Monad used as a charm bythe Chinese and as a trademark by the Northern PacificRailroad (§ 186, Ex. 5, and Remark). (See also Figs. 142and 152.) The quadrifoil is also found in AmericanIndian decoration.* 1 Shaw (1), PI. XX. 2 Shaw (1), Pis.… … EXERCISES 174. 1. Construct a quadrifoil of tangent circles in a square, sothat each circle shall be tangent to one side of the square at itsmiddle point and to two of the other circles. Suggestion. — See Fig. 140. Draw the diagonals of the square.Inscribe a circle in each triangle thus formed. 2.…
Geometry · Decoration and ornament
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