 | Philip Ronayne - 1738 - 458 σελίδες
...is in Words, half the Sum of the Legs, Is to half their Difference, As the Tangent of half the Sum of the oppofite Angles, Is to the Tangent of half their Difference : But Wholes are as their Halves ; wherefore the Sum of the Legs, Is to their Difference, As the Tangent of half the Sum of the Angles... | |
 | John Ward (of Chester.) - 1747 - 516 σελίδες
...that is in Words, half the Sum of the Legs is to half their Difference, as the Tangent of half the Sum of the oppofite Angles is to the Tangent of half their Difference : But Wholes are as their Halves ; wherefore the Sum of the Legs is to their Difference, as the Tangent of half the Sum of the Angles... | |
 | John Muller - 1773 - 202 σελίδες
...BC-CA:BD + DA. PROP. Fig. 27: 80. In any unequal fided triangle ABQ the fum of the fides BC, AC, is to their difference, as the tangent of half the fum of the oppofite angles A, B, is to the tangent of half their difference. Let the fame conftruction be as the laft, draw AF,... | |
 | John Hamilton Moore - 1791 - 578 σελίδες
...FG, »hat is, half the Sum of the Legs is to half their Difference, as the Tangent of halt the Sum of the oppofite Angles is to the Tangent of half their Difference : but Wholes are as their Halves ; wherefore the Sum of the Lege is to their Différence, as the Tangent of half the Sum of the Angles,... | |
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FG ; that is in Words, half the Sum of the Legs is to half their Difference, as the Tangent of half the Sum of the oppofite Angles is to the Tangent of half their Difference : But Wholes are as their Halves ; wherefore the Sum of the Legs is to their... 