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 338
. AP=PD = DQ = OB. The rectanglePO0Q is so constructed that PO is f of PQ.P, O, 0Q are the centers for PG, GC, CH,and HB, respectively. EXERCISES 1. Show how to construct the complete figure. 2. Prove that A G and GC are tangent; also HB and HC. 3. Prove that GC and CH and the line CD are… … 326 TRUSSES AND ARCHES 349. Becker, page 80, gives also the following specialconstruction for a Tudor Arch.
Geometry · Decoration and ornament
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