| Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...with its adjacent exterior ABD , is equal b to two right angles; therefore all the interior, to/ether **with all the exterior angles of the figure, are equal to twice as many right** fj angles as there are fides of the figure ; that is by the foregoing corollary, they are equal to... | |
| Alexander Ingram - Trigonometry - 1799 - 374 pages
...Becaufe every interior angle ABC, with its adjacent exterior ABD, is equal b to two right angles ; **therefore all the interior, together with all the...figure, are equal to twice as many right angles as** there are fides of the figure ; that is, by the foregoing corollary, they are equal to all the interior... | |
| Mathematics - 1801 - 658 pages
...;• add all the inward angles A, B, C, &c. together, and when the work is right, their sum will be **equal to twice as many right angles, as the figure has sides,** wanting four right angles. And when there is an angle, as F, that bends inward, and you measure the... | |
| Robert Simson - Trigonometry - 1804 - 530 pages
...angles. Becaufe every interior angle ABC with its adjacent exterior ABD is equal b to two right angles ; **therefore all the interior together with all the exterior...figure, are equal to twice as many right angles as** there are fides of the figure, that is, by the • foregoing Corollary, they are equal jj J3 to all... | |
| John Playfair, Euclid - Circle-squaring - 1804 - 468 pages
...Becaufe every interior angle ARC, with its adjacent exterior ABD, is equal b to two right angles ; **therefore all the interior, together with all the...figure, are equal to twice as many right angles as** there are fides of the figure ; that is, by the foregoing corollary, they are equal to all the interior... | |
| John Playfair - Mathematics - 1806 - 320 pages
...has sides are equal to all the angles of the figure, together with four right angles, that is, the **angles of the figure are equal to twice as many right angles as the figure has sides,** wanting four. COR. 2. All the exterior angles of any rectilineal figure are together equal to four... | |
| Robert Simson - Trigonometry - 1806 - 546 pages
...gether with four right angles. Therefore all the angles of the figure, together with four right angles, **are equal to twice as many right angles as the figure has sides.** CoR. 2. All the exterior angles of any rectilineal figure, are together equal to four right angles.... | |
| Charles Hutton - Mathematics - 1807 - 464 pages
...work ; add all the inward angles A, B, c, &c, together ; for when the work is right, their sum will ba **equal to twice as many right angles as the figure has sides,** wanting 4 right angles. But when there is an angle, as F, that bends inwards, and you measure the external... | |
| Sir John Leslie - Geometry, Analytic - 1809 - 542 pages
...AED, is equal to two right angles. All the exterior angles therefore, added to the interior angles, **are equal to twice as many right angles as the figure has sides.** Consequently the exterior angles are equal to the four right angles which, by the last Proposition,... | |
| Sir John Leslie - Geometry, Plane - 1809 - 522 pages
...is equal to two right angles. All the exterior angles therefore, added to the interior angles, ftre **equal to twice as many right angles as the figure has sides.** Consequently the exterior angles are equal to the four right angles which, by the last Proposition,... | |
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