 | Edward Laurence - Surveying - 1716 - 408 pages
...a, is equal to t wo right Angles (by tbe^tb /)confequently all the internal and external Angles are equal to twice as many right Angles as the Figure has fides. But all its internal Angles are equal to twiee as many right Angles eicept 4 as it has fides (by the... | |
 | Robert Simson - Trigonometry - 1762 - 488 pages
...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 fides. C o R. 2 . All the exterior angles of any rectilineal figure are together equal to four right angles.... | |
 | Euclid - Geometry - 1765 - 492 pages
...has fides. But fince all the inward angles together, with four right angles, has been proved to be equal to twice as many right angles as the figure has fides ; therefore all the inward angles, together with four right angles, is equal to all the inward and... | |
 | Robert Simson - Trigonometry - 1775 - 534 pages
...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 fides. CoR. 2. All the exterior angles of any re&ilineal figure, are together equal to four right angles.... | |
 | Euclid - 1781 - 552 pages
...with four right angles. Thprefpre all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has fides. CoR. 2. All the exterior angles of any rectilineal figure, arc together equal to four right angle*.... | |
 | Charles Hutton - Measurement - 1788 - 728 pages
...work ; add all the inward angles A, B, c, &c, together, and when the work is right, their fum will be equal to twice as many right angles as the figure has fides, wanting 4 right angles. And when there is an angle, as F, that bends inwards, and you meafure the external angle, which is... | |
 | Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...Q^ED CoR. i. All the interior angles of any reftilineal figure, together with four right angles, are equal to twice as many right angles as the figure has fides. For any reftilineal figure ABCDE can be divided into as many triangles as the figure has lides, by... | |
 | Alexander Ingram - Trigonometry - 1799 - 374 pages
...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 fides. COR. 2. All the exterior angles of any reftilineal figure, are together equal to four right angles.... | |
 | John Playfair, Euclid - Circle-squaring - 1804 - 468 pages
...Wherefore^ if a fide of a triangle; &c. C^ED CoR. i. All the interior angles of any reftilmeal figure, are equal to twice as many right angles as the figure has fides, wanting four right angles. For any reftilineal figure ABCDE can be divided into as many triangles as the figure... | |
 | Robert Simson - Trigonometry - 1804 - 530 pages
...Q^ED . CoR. i. All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has fides. For any reCtilineal figure ABCDE can be divided into as many triangles as the figure has fides, by... | |
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E, is equal to twice as many right angles as the figure has sides, less four right angles. 
