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 162
Z are parallel. 7. Point K may be determined by bisecting Z ORH. Let thebisector intersect OA at K. Prove that in this case YK = YR. 8. Is it possible to make YR = KL ? Suggestion. —Is it possible to make Z KLR = Z LRK1 9. Construct figures similar to Fig. 129, by dividing the circum-ference into… … Fig. IS9a.j—A«bkC Dscign Unit. P:i3Fe dAvemes, PI. 50.. CHAPTER IV GOTHIC TRACERY: FORMS IN CIRCLES 160. Origin and Development.^ — The origin of Gothictracery is evident from a study of English buildings.During the latter part of the twelfth and during thethirteenth century, lancet windows which…
Geometry · Decoration and ornament
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