 | Edmund Stone - 1746 - 62 σελίδες
...Circle, which come in competition with Angles or Arcs. Thefe right Lines are thus defined : A Chord of an Arc or Angle is a right Line drawn from one End of an Arc to the Fig. 1. other; as the Line AB is the Chord of the Arc AB : it is alfo the Chord of the... | |
 | Caleb Ashworth - 1766 - 214 σελίδες
...the arc AHI, and of А В 1C F I. DE F. III. The RIGHT -SINE, or (as it is commonly called) the SINE, of an arc or angle is a right line drawn from one end of the arc, perpendicular to a radius drawn thro' its other end : Or, it is half the chord of an arc which is double to that of... | |
 | John Bonnycastle - 1806 - 464 σελίδες
...angles, or 180°. Thus B oc is the complement of A o B, and B oa is its supplement. The sine of an arc is a right line drawn from one end of the arc perpendicular to the diameter which passes through the other end. Thus BD is the sine of AB, or of B «. The cosine of an... | |
 | George Watson - 1822 - 72 σελίδες
...wants of a semicircle, and is known by subtracting the arc or angle from 180 degrees. 170. The SINE of an arc or angle is a right line drawn from one extremity of the arc, perpendicularly upon the radius, or diameter which is drawn to the other extremity... | |
 | Abel Flint - 1830 - 322 σελίδες
...radii and an arc less than a semicircle ; as BCD or ACD. Fig. 6. Fig. 1. B 20. The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter drawn through the otherend : or, it is half the chord of double the arc ; thus HL is the... | |
 | Abel Flint - 1835 - 366 σελίδες
...between two radii and an arc less than a semicircle ; as BCD or ACD. Fig. 6. 20. The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter drawn through the other end : or, it is half the chord of double the arc ; thus HL is the... | |
 | Charles Waterhouse - 1842 - 180 σελίδες
...equal in length to the radius of the circle of which the arc is a part. 5. The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter drawn through the other end ; or, it is half the chord of double the arc. ' NOTE. — The... | |
 | Charles WATERHOUSE - 1844 - 228 σελίδες
...the figure. The smaller part is understood, when not otherwise expressed. 28. The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter, as o to I of the figure, when longer or shorter. 29. The versed sine of an arc, is that... | |
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The sine of an arc is a line drawn from one end of the arc, perpendicular to the radius or diameter drawn through the other end : or, it is half the chord of double the arc ; thus HL is the sine of the arc HB. 