 | Thomas Keith - 1810 - 478 pages
...t/x sine of the arc BA. The sine of an arc of 30° is equal to half the t radius.-)(L) The tangent^, of an arc is a straight line drawn from one extremity of the arc, perpendicular to the diameter, and is terminated by a straight line drawn through the centre of the... | |
 | Peter Nicholson - 1823 - 210 pages
...or IM is the co-sine of the arc AB ; and, therefore, the sine of the complement BC. 231. The TANGENT OF AN ARC is a straight line, drawn from one extremity of the arc, where it touches it, to meet the prolongation of the radius through the other extremity. The line AK,... | |
 | Thomas Keith - 1826 - 504 pages
...the sine of the, arc BA. The sine of an arc of 30° is equal to half the radius.^ (L) The tangent f of an arc is a straight line drawn from one extremity of the arc, perpendicular to the diameter, and is terminated by a straight line drawn through the centre of the... | |
 | William Whewell - 1832 - 572 pages
...position will be a tangent to each, that is, the arcs AB, Ab have a common tangent. DBF. The subtense of an arc is a straight line, drawn from one extremity...to meet at a finite angle the tangent to the arc at its other extremity. LEMMA VII. If BD be a subtense of the arc ACB of continued curvature, the chord... | |
 | John Hymers - 1837 - 486 pages
...position will be a tangent to each, that is, the arcs APB, Apb have a common tangent. * DEF. The subtense of an arc is a straight line drawn from one extremity...to meet at a finite angle the tangent to the arc at its other extremity. LEMMA VII. If BD be a subtense of the arc AC В of continued curvature, the chord... | |
 | Thomas Keith - 1839 - 498 pages
...the sine of the arc BA. The sine of an arc of 30° is equal to half the radius.-f (99) The tangent\ of an arc is a straight line drawn from one extremity of the arc, perpendicular to the diameter, and is terminated by a straight line drawn through the centre of the... | |
 | Janet Taylor - 1842 - 592 pages
...co-veraed sine of the are HP, bcing the versed sine of the complemental are PM. The chord of an are is a straight line drawn from one extremity of the arc to the other. Thus, NO is the chord of the are NBO, or of the are NWMPEO. The chord of an are of 60°,... | |
 | A. Fleming - 1844 - 122 pages
...designate angles and arcs, namely : (1.) The Chord of an angle, or of its measuring arc, — which is a straight line drawn from one extremity of the arc to the other. (2.) The Sine of an angle, or its arc, — which is a perpendicular from one extremity of... | |
 | Harvey Goodwin - 1846 - 500 pages
...vanish together, and the chord APp in its ultimate position will be a tangent to both. DEF. The subtense of an arc is a straight line, drawn from one extremity...meet at a finite angle, the tangent to the arc, at its other extremity. OBS. The following three Lemmas involve a common principle, which it may be well... | |
 | Isaac Newton - 1850 - 184 pages
...will be a tangent to each, that is, the arcs AB, A b have a common tangent. Fig. 8. Def. The subtense of an arc is a straight line, drawn from one extremity...to meet at a finite angle the tangent to the arc at its other extremity. LEMMA VII. If BD be a subtense of the arc ACB of continued curvature, the chord... | |
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The tangent\ of an arc is a straight line drawn from one extremity of the arc, perpendicular to the... 
