 | E. S., Edmund Stone - Compasses (Mathematical instruments) - 1721 - 60 pages
...Semicircle: Whence all Chords of Arcs, greater than a Semicircle, are leifcr than the Diameter. A right Sine of an Arc, is a right Line drawn from one end of that Arc, perpendicular to a Diameter drawn to the other end of it, and belongs to both Arcs of a Semicircle... | |
 | John Keill - Logarithms - 1723 - 444 pages
...an Arc is the Difference thereof from a Quadrant. A Chord, or Subtenfe, is a Right Line drawn jrom one End of the Arc to the other. The Right Sine of any Arc, which alfo is commonly called only a Sine, is a Perpendicular falling from one End ff an Arc, to the Radius... | |
 | John Keill - Astronomy - 1726 - 176 pages
...Parts. The Complement of an Arc is the Differ*, ence thereof from a Quadrant. A ^.hord, or Subtenfe, is a Right Line drawn from one End of the Arc to the other. The Right Sine of any Arc, which alfo is commonly called only a Sine, is a Perpendicular falling from one End of an Arc, to the Radius... | |
 | Euclid, John Keill - Geometry - 1733 - 444 pages
...Parts. The Complement of an Arc is the Difference thereof from a Quadrant. A Chord, or Subtenfe, na Right Line drawn from one End of the Arc to the other. The Right Sine of any Arc, which alfe is commonly tailed only a Sine, is a Perpendicular falling from one End of an Arc, to the Radius... | |
 | John Keill - Geometry - 1772 - 462 pages
...an Arc is the Difference thereof from a Quadrant. A Chord or Subtenfe, is a Right Line drawn front one End of the Arc to the other. The Right Sine of any Arc, which is'alfe commonly failed only a Sine, is a Right Line drawn, from one End ' of an Arc, perpendicular... | |
 | John Keill - Geometry - 1782 - 476 pages
...of an Arc it the Difference thereof from a Quadrant. A Chord or Subtenfe, is a Right Line drawn /ram one End of the Arc to the other, The Right Sine of any Arc, "which Is alfo commonly called only a Sine, is a Right Line drawn, from one End ef an Arc, perpendicular to the... | |
 | John Bonnycastle - Trigonometry - 1806 - 464 pages
...right 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... | |
 | Samuel Webber - Mathematics - 1808 - 466 pages
...are chords, answering to the points of the Mariners' Compass, which are 32 in the circle. t The sine of an arc is a right line, drawn from one end of an arc perpendicular to the radius, drawn to the other end. The versed sine is the part of the radius,... | |
 | Enoch Lewis - Conic sections - 1844 - 234 pages
...circle is any part of the circumference, usually taken less than the whole. As AB, or BHD. 2. The chord of an arc is a right line drawn from one end of the arc to the other. Thus, BE is the chord of the arc BAE, or BDE. 3. The sine of an arc is a straight line drawn from one... | |
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Arc is the Difference thereof from a Quadrant. A Chord or Subtenfe, is a Right Line drawn front one End of the Arc to the other. The Right Sine of any Arc, which is'alfe commonly failed only a Sine, is a Right Line drawn, from one End ' of an Arc, perpendicular... 