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 225
Fig. 189a. — First CongregationalChurch, Chicago. 230. Figure 189 is based upon Fig. 188. Circles are inscribed in eachof the seven curved triangles formed. EXERCISES 1. If AE, BF, and CD are medians of the linear triangle ABC,and if they intersect at 0, prove that (1) 0 is the center of thecircle…
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
