A treatise on special or elementary geometry (1877)
Olney, Edward, 1827-1887, Olney, Edward, 1827-1887. Elements of trigonometry, plane and spherical · New York : Sheldon · leaf 357
ietrical Tanf/ent of an angle (or arc)is a tangent drawn to the measuring arc at its origin, and limited … Fig. 2. by tlie prodrbced diameter passing throngli the termination of thearc. Thus in Fig, S, ac is in each case the tangent of the angle AOB,or of the arc axb. 16, The Secant of an angle (or arc) is the distance from theangular point, or centre of the measuring circle, to the extremity ofthe…
Geometry · Trigonometry
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