 | International Correspondence Schools - Coal mines and mining - 1913 - 360 pages
...as the sine, cosine, tangent, cotangent, secant, and cosecant are compared. The sine, or sin, of an arc is the perpendicular let fall from one extremity of the arc on the diameter that passes through the other extremity; in Fig. 2, CD is the sine of the arc A C.... | |
 | Thomas J. Foster - Coal mines and mining - 1916 - 1230 pages
...functions, known as the sine, cosine, tangent, cotangent, secant, and cosecant, are compared. The sine of an arc is the perpendicular let fall from one extremity of the arc on the diameter that passes through the other extremity. Thus, CD, n. „„,.. ..^..^ / Fig. 2, is... | |
 | Charles Hurst Cugle - Navigation - 1918 - 278 pages
...Supplement of an Arc is 180° minus the Arc. Thus FH is the supplement of the Arc ABF. No. 3. The Sine of an Arc is the perpendicular let fall from one extremity of the arc on the diameter which passes through the other extremity. Thus CD is the sine of the arc A C. No. 4.... | |
 | William Kent - Mechanical engineering - 1923 - 1450 pages
...trigonometrical functions. 'In a circle whose radius is unity, the sine of an arc, or of the angle at center measured by that arc, is the perpendicular let fall from one extremity the arc upon the diameter passing through the otter extremity. The tangent of an arc is the line which... | |
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The sine of an arc is the perpendicular let fall from one extremity of the arc on the diameter which passes through the other extremity. 
