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 253
240 GOTHIC TBACERY: POINTED FOBMS EXERCISES 1. Construct a figure similar to Fig. 217, so that AB shall be fourinches. Show all work in detail. 2. Prove that it is possible to inscribe circle 0 in the circular squarexyzw. 3. If AB = s, find the radius of circle O and the length of BK. Ans.(l)… … EXERCISES 1. Construct circle 0 tangent to the arcs A C and CB. Suggestion. — Draw BO and extend to the arc A C. Use the theorem, If two circles have a common point on the line of centers, the circlesare tangent. 2. Construct the equilateral arches GEHsmd HFKon the half spanAD and DB, so that the…
Geometry · Decoration and ornament
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