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 241
1. Give complete construction for Fig. 206. 2. Show that Fig. 206 can be inscribedwithin an equilateral curved triangle ABC,if A, B, and C are the centers for the arcsBC, A C, and AB, respectively. Suggestion. — In Fig. 206o ABC is an equi-lateral triangle with the medians AE, BF,and CD. The angles… … Fig. 2066. — From St BridesR. C. Church, Chicago. FORMS CONTAINING TANGENT CIRCLES 229 3. Construct the curved A GKM and HLN and prove that acircle can be inscribed in the curved hexagon XYZ etc. Suggestion. — Prove that OX = OY = OZ, etc., and that the circleand the arcs NH, GK, HL, etc., are…
Geometry · Decoration and ornament
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