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 329
316 . TRUSSES AND ABCHES EXERCISES 1. Construct the arcs CH and GC tangent to the line CD at C,and to the arcs HB and GA. 2. Draw lines PE and CB. Prove that they intersect at the pointof tangency H. 3. If AB = s,PB=: ks, and CD = h, find the length of CE. Arts. ■ ^^ . is 337. In Fig. 284 AB and CD… … Fig. 284. EXERCISES 1. Construct the arcs CH and HB so that they shall be tangentto CD at C and to BS at B, respectively, and so that they shall passthrough a given point H in the line CB. 2. If E and P are the centers for the arcs CH and HB, respec-tively, prove that the points E, H, and P are…
Geometry · Decoration and ornament
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