A system of geometry and trigonometry : with a treatise on surveying (1830)
Flint, Abel, 1765-1825, Gillet, George, Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Hartford : Cooke & Co. · leaf 29
PROPOSITION II. If one leg, AB,Fig. 41, be made radius, and with it onthe point A an arc be described, thenBC, the other leg, will be the tangent,and AC the secant of the angle at A ;and if BC be made radius, and an arcbe described with it on the point C, thenAB will be the tangent and AC the… … TRIGONOMETRY. 25 Thus, as different sides are made radius, the other sidesacquire different names, which are either sines, tangents orsecants. As the sides and angles of triangles bear a certain propor-tion to each other, two sides and one angle, or one side andtwo angles being given, the other…
Surveying · Geometry · Trigonometry
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