A treatise on surveying and navigation: uniting the theoretical, practical, and educational features of these subjects (1857)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst; Toledo, Anderson, Burr, & co. · leaf 136
134 SURVEYING. and through c, draw cd parallel to CB. Where these two lines in-tersect is P, and the triangle ABC is divided into three triangles,APB, CPB,amlAPC. Demonstration.— Any triangle having AB for its base, and itsvertex in the line ab, will have the same ratio to the triangle ABC,as Aa…
Surveying · Navigation
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