Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 171
lly in the matter of obtaining accuracy in the result. Notethat the ground lme is not essential in these constructions. Construction by Second Analysis (Fig. 231). Let the completeF-p rejection, avbvcvdvev, and three points, ah, bh, and c*, of theiT-projection be given. By producing the lines ab… … Fig. 231. Corollary 1. To find the true size and shape of a planepolygon. First Analysis. Find one trace of the plane containing the XV, § 142] PROBLEMS OF REVOLUTION 151 polygon. Revolve the polygon about this trace into the corre-sponding coordinate plane. Second Analysis. If any side of the…
Geometry, Descriptive
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