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 231
In Fig. 19S ABCD is a square with diagonals AC and BD, andthe diameters EG and HF. The circle MNPQ is inscribed in the squareOFCG. The arcs GH and FE are quadrants with O as center, and OH asradius. The arc HLM is tangent to line AD at H, and to the circleMNPQ. 218 GOTHIC TRACERY: POINTED FORMS… … A R O B Fig. 196. — From St. Margarets Church, Hertfordshire,Eng. Brandon (I), Decorated, Sect. I, PI. 13. EXERCISES 238. 1. Given AB the span of given length. Construct the de-sign for window shown in Fig. 196, making AZCPT equilateral. Suggestion. — On the half span AD construct the equilateralA…
Geometry · Decoration and ornament
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