Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn & company · leaf 19
, ^ = 29°; solve the triangle. 48. Given F = 100, c = 22 ; solve the triangle. 49. Find the angles of a right triangle if the hypotenuse isequal to three times one of the legs. 30 PLANE TRIGONOMETRY 50. Find the legs of a right triangle if the hypotenuse is 6,and one angle is twice the other. 51.… … Fig. 20 The angle of elevation of an object, or the angle of depres-sion, is the angle which a line from the eye to the object makeswith a horizontal line in the same vertical plane. Thus, if the observer is at 0 (Fig. 20), x is the angle ofelevation of B, and y is the angle of depression of C. 53.…
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