 | Royal Society (Great Britain) - Science - 1722 - 722 pages
...were before prov'd to be equal to А В С, ВАС. QED Hence may be inferr'd as a Corollary, That the three Angles of every Triangle are equal to two Right ones ; for the Angks А С В -V- В С E, are meafur'd by a Semicircle, and therefore equal to two Right... | |
 | Royal Society (Great Britain) - Science - 1749 - 674 pages
...which was before prov'd to be equal to ABC, ВАС. Q ED Hence may be inferr'd as a Corollary, That the three Angles of every Triangle are equal to two Right ones ; for the Angles А С В -|- В С Е, are meafur'd by a Semicircle, and therefore equal to two Right... | |
 | Richard Griffith - 1757 - 360 pages
...well quote ddam for breathing, becaufe he was the firft Creature who did fo, as Euclid for faying that the three Angles of every Triangle are equal to two right ones, becaufe he was the firft Perfon who demonftrated that Propofition. A quoting Author is juft as ridiculous... | |
 | Robert Simson - Trigonometry - 1762 - 488 pages
...circle ABCD ; any two of its oppofite angles are together equal to two right angles. Join AC, BD ; and becaufe the three angles of every triangle are equal • to two right angles, the three angles of the triangle CAB, viz. the angles CAB, ABC, BCA are equal to two right... | |
 | Richard Griffith - 1767 - 314 pages
...well quote Adam for breathing, becaufe he was the firft creature who did fo, as Euclid for faying that the three angles of every triangle are equal to two right ones, becaufe he was the firft perfon who demonftrated that propofition *. A quoting author is juft as ridiculous... | |
 | Richard Shepherd - Good and evil - 1768 - 250 pages
...Julius Casfar was ftabbed in the Senate-houfe, or Richard the lild. flain in Bofworth field, as that the three angles of every triangle are equal to two right ones : yet I .believe the afcertainment of thofe fadts, as firmly as I do the demonftration <;f this. And... | |
 | Richard Shepherd - Good and evil - 1768 - 242 pages
...Julius Casfar was ftabbed in the Senate-hbufe, or Richard the Hid. flain in Bofworth field, as that the three angles of every triangle are equal to two right Ones : yet I believe the afcertainment of thofe facts, as firmly as I do the demonftration of this. And... | |
 | Thomas Malton - 1774 - 484 pages
...32nd, the external Anglais proved to be equal to the two remote Angles of the Triangle; and, that all the three Angles, of every Triangle, are equal to two right ones; it fee.-nsabfurd coprove,beforehand, thatany t wo of the Angles are lefs than two right Angles, and,... | |
 | Alexander Ingram - Trigonometry - 1799 - 374 pages
...circle ABCD ; any two of its oppofite angles are together equal to two right angles. Join AC, BD ; and becaufe the three angles of every triangle are equal * to two right angles, the three angles of the a 3». i. triangle CAB, viz. the angles CAB, ABC, BCA are equal to... | |
 | Robert Simson - Trigonometry - 1804 - 530 pages
...circle ABCD ; any two of its oppofite angles are together equal to. two right angles. Join AC, BD ; and becaufe the three angles of every triangle are equal » to two right angles, the three angles of the triangle CAB, viz. the angles CAB, ABC, BCA are equal to two right... | |
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THE oppofite angles of any quadrilateral figure defcribed in a circle, are together equal to two right angles. Let ABCD be a quadrilateral figure in the circle ABCD ; any two of its oppofite angles are together equal to. two right angles. Join AC, BD... 