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 250
All arches areequilateral except MDN. Arcs EM and FN are tangent to circle O and con-structed as in Fig. 210. Arcs MD and DN are constructed to pass through pointD and be tangent to arcs EM and FN at points M and N respectively. EXERCISE Construct the figure, making AB three inches. Show all ■work… … Fig. 214. EXERCISES 1. Construct a figure like Fig. 214, in which AB is five inches.Show all work in detail. 2. If AB = s, find the radius of circle 0 and the length of BK. Ans.{l) ^; (2) |(V33-3).Suggestion. — For,the radius of circle O see § 241, Ex. 3. 238 GOTHIC TRACEBT: POINTED FORMS C 259.…
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
