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 249
Fig. 212. — Northfleet Church, Kent,England. Brandon, (I), p. 41. … Fig. 213,— From Chapter House, York Cathedral.RIcknnan, p. 182. 256 In Fig. 212 the equilateral curved triangle ABC is constructed withA, B, and C as centers. The circle O is inscribed in this triangle. Arches GEHand HFK are equilateral, erected on the half span GH, so that the arcs HE andHF are…
Geometry · Decoration and ornament
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
