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 306
Fig. 261. 307. In Fig. 261 the arch ACB is equilateral. AB is divided into 7equal parts, and the arcs drawn as shown. EXERCISES1. Find the radius of circle 0 and of circle 0, if AB = s. Ans. 15 s 6 s 98 49 2. Construct the entire figure. 3. Show that the radius of circle O may be found from…
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
