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 180
/.GOA. Prove that «)0 = Ox;OH is the perpendicular bisector of xw; Ew = Ex. Therefore, Elies on OH. 4. If OA = a, find the area of (1) the cusped figure EAHG etc.and (2) the quadrifoil KEAFM etc. 5. Show that K, L, M, N, etc. are the vertices of a regularoctagon. 6. If OA = a, find the area of the…
Geometry · Decoration and ornament
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