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 284
Fig. 242a.— From LincolnCathedral, England. 288. Type I. — in Fig. 242 AQ = I AB. AQ is the radius for thearcs CB and CA. Arches AER and SFB are equilateral and AR = RS = SB. EXERCISES 1. Find the radius of circle 0 tangent to the arcs CA and ER and 5s the line CD. A ns. 24 Suggestion. —Dvaw OQ and…
Geometry · Decoration and ornament
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