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 330
is section, § 341and § 342 contain those that are most generally applicable,as in them the center for one of the circles is arbitrarywhen the altitude and span are given. It may be readilyseen by experiment that the relative position of the centersdetermines the slope of the arch for any given span… … 1 Bond, p. 267. 318 TRUSSES AND ABCHES EXERCISES 1. Prove that a circle which is tangent to circle P and has its cen-ter on line CD is tangent also to circle Q. 2. If AF is perpendicular to CD at C, construct a circle tangent toXY at C and to circle P. Show that two circles are possible. 3.…
Geometry · Decoration and ornament
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