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The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification:
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<title> Elements Of Trigonometry: Plane And Spherical; Phillips-Loomis Mathematical Series
<authors> Andrew Wheeler Phillips, Wendell Melville Strong
<publisher> American Book Co., 1898
<subjects> Trigonometry
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
In Trigonometry the size of an angle is measured by the amount one side of the angle has revolved from the position of the other side to reach its final position. Thus, if the hand of a clock makes one-fourth of a revolution, the angle through which it turns is one right angle; if it makes one-half a revolution, the angle is two right angles; if one revolution, the angle is four right angles; if one and one-half revolutions, the angle is six right angles, etc. B-t5) FIG. 3T he amount the side OB has rotated from OA to reach its final position may or may not be equal to the inclination of the lines. In Fig. i it is equal to this inclination ;in Fig. 4it is not. Two angles mny have the same sides and yet be different. In Fig.
(Typographical errors above are due to OCR software and don't occur in the book.)
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