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 210
Fig. 178. - From Diefenbach, Series B,PI. VIII. Fig. 178a. —Stamped SteelCeiling Design. 216. In Fig. 178 the circumference of the circle is divided into eight equalparts by the points A, B, C, D, etc. Point K on the diameter OB is the centerfor the arc CZOWA. The arcs intersect at the center and…
Geometry · Decoration and ornament
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