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 328
6 9. If the span AB is given and if CD is of indefinite length,construct CH so that it shall be tangent to the line CD and to HBand have a given radius. Suggestion. — Find point E by intersecting loci as in § 334, Ex. 10. 10. By the construction suggested in Ex. 9, draw a figure in whichCE = AB.… … 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…
Geometry · Decoration and ornament
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