A treatise on surveying and navigation: uniting the theoretical, the practical, and the educational features of these subjects (1852)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst · leaf 59
gles is proposed by theside AB, being greater or less than AC; or, by the angle at thevertex C, being large as ACB, or small as ACB. In the solitary case in which A C, CB, and the angle A, are given,and CB less than A C, we can determine both of the As A CBand ACB; and then we surely have the right… … 54 SURVEYING. Let ABC be the triangle. Let fall theperpendicular CD, on the side AB. Take any radius, as Cn, and describethe arc which measures the angle C.From n, draw qnp parallel to AB. Thenit is obvious that np is the tangent of theangle D CB, and nq is the tangent of the angle A CD. Now, by…
Surveying · Navigation
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