Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn & company · leaf 16
e above table, the legs of a righttriangle if A = 20°, c = 1; also, if A = 20°, c = 4. 31. In a right triangle, given a = 3 and c = 5; find thehypotenuse of a similar triangle in which a = 240,000 miles. 32. By dividing the length of a vertical rod by the lengthof its horizontal shadow, the tangent… … § 2. Representation of Functions by Lines. The functions of an angle, being ratios, are numbers; butwe may represent them by lines if we first choose a unit oflength, and then construct right triangles, such that the de-nominators of the ratios shall be equal to this unit. The mostconvenient way to…
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