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 228
respectively. EXERCISES 1. Prove that AEB, CFA, and CEB intersect on the medians ofthe linear triangle ABC. 2. Prove that the curved figures AECHA and AGBDA are con-gruent; also the figures ADFEA, CEDFC, and BFEDB. 3. Construct Fig. 191, omitting all dotted lines and the arcs A GB,AD, and DB.… … EXERCISES 234. 1. Let E and F be the midpoints of CA and CB. Con-struct a figure like Fig. 190a, with the arc APB tangent to EF. SeeFig. 192. Suggestion. — Find point 0 on line CG equally distant from P andB. PD 2. Find the length of DO. Ans. ■ Let AB = s, and DO = x-, PD = - Vd, DB =- 4 2…
Geometry · Decoration and ornament
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