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 281
D S Fig. 239. M 268 GOTHIC TRACERY: POINTED FOBMS 285. IiiFig.239AQ=BP=JAB.P and Q are the centers for the arcsBC and AC, respectively. AR=RD=DS=SB. Arcs GH, ED, KS, etc., aredrawn with AQ as radius, and pointson line PM as centers. M is the cen-ter for the arc FD. … Fig. 2390. — From Wells Cathedral ChapterHouse. EXERCISES1. Find the radius of circle 0 inscribed in the quadrUateral CEDF. Ans. Suggestion. — See § 281, Ex. 3. 2. Ji AQ = ^ AB = ^s, find the radius of circle O. Ans. 3. H AQ = ks, find the radius of circle 0 where AB = s. , s Sk-Ans. —; • 5 80 64 k…
Geometry · Decoration and ornament
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