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 187
area of the following figures: (1) the quad-rifoil; (2) one of the ovals in the square PQRS; (3) the figure bounded by IVKN and line-segments AN and AN- 2v2)(^-2); Ans. (1) a2 (3 - 2 V2) (tt -F 2) ; (2) ^ (3 ■ (3)iL(3-2V2)(4-^). 174 GOTHIC TBACEBT: FORMS IN CIRCLES 185. In Fig. 151 ABCD is a… … A B Fig. 151.—Carved Wood Desgn. Door,Rhyerson Laboratory, University ofChicago. EXERCISES 1. Prove that the points E, L, and F are collinear and that EFGHis a square. 2. Show how to construct the quadrifoil PQRST etc. 3. Prove that points K, P, V, and M are collinear. 4. Prove that P is the middle…
Geometry · Decoration and ornament
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