American text books of art education : Geometrical drawing (1873)
Smith, Walter, 1836-1886 · Boston : James R. Osgood & Co. · leaf 85
ng the bisect-ing line until it cuts C 4 in point 5. Set off the distance 1 5 from1 on lines A 3 and B 2 in points 6 and 7. Then 5, 6, 7 will be thecentres, and 5 4 the radius, of the required circles. If it be required to inscribe three other similar circles, each touch-ing two others, and two… … Prob. 90.— To construct a triangle whose angles shall be equal tothose of a given triangle ABC, and whose periphery or outline shall. be equal to a given line D E. At D and E make angles equal to those at A and B respectively ;bisect the angles at D and E, producing the lines until they meet inF;…
Geometrical drawing
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