| Edward Laurence - Surveying - 1716 - 408 pages
...Ej but each of thofe Triangles contain three Angles = two right ones (by the -jtb) therefore all the Angles of any Polygon are equal to twice as many right Angles, eieept four. CORROLART. IV. Fig.4.6- In any Polygon А В CD E, the fides being produced will make... | |
| Robert Simson - Trigonometry - 1762 - 488 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 fides. C o R. 2 . All the exterior angles of any rectilineal figure are together equal to four right... | |
| Euclid - Geometry - 1765 - 492 pages
...taken together) therefore .all the angles of a right-lined figure, together with four right angles, are equal to twice as many right angles as the figure has fides. And taking away four right angles from each, there will remain all the angles of the figure... | |
| Thomas Malton - 1774 - 484 pages
...by the Sides. ie equal to four Right Angles. And, all the internal Angles of any Right-lined Figure are equal to twice as many Right Angles as the Figure has Sides, wanting four, (Th. i. i0. i.) confequently, the external Angles being equal to thofe four (Th.... | |
| Robert Simson - Trigonometry - 1775 - 534 pages
...together 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
...together 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... | |
| John McGregor (teacher of mathematics.) - Mathematics - 1792 - 532 pages
...ft, I. 32. Euclid. All the anterior angles of any reoilineal figure, together with four right angles, are equal to twice as many right angles as the figure has fides. Hence the following rule. RULÉ. From double thé number of fides f übt vail: 4, and the remainder... | |
| Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...&c. 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,... | |
| Alexander Ingram - Trigonometry - 1799 - 374 pages
...&c. 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 For any reftilineal figure ABCDE can be divided into as many triangles as the figure has... | |
| 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,... | |
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