 | Robert Simson - 1762 - 488 sider
...", toM. i. 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... | |
 | Euclid - 1765 - 492 sider
...all its parts 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... | |
 | Robert Simson - 1775 - 534 sider
...a triangle, &c. Q;.ED CoR. i. All the interior angles of any re&ilineal figure, together with foiir right angles, are equal to twice as many right angles as the figure has fides. For any re&ilineal figure ABCDE can be divided into as many triangles as the figure... | |
 | Euclid - 1781 - 552 sider
...that isa, 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... | |
 | John McGregor (teacher of mathematics.) - 1792 - 532 sider
...3By cor. i 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,... | |
 | Euclid, John Playfair - 1795 - 462 sider
...a triangle; &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... | |
 | Alexander Ingram - 1799 - 374 sider
...a triangle, &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... | |
 | Robert Simson - 1804 - 530 sider
...triangle, &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 any reCtilineal figure ABCDE can be divided into as many triangles as the figure... | |
 | Thomas Leybourn - 1814 - 420 sider
...Hence, by adopting the notation in the question, we have But the sum of the angles of any polygon being equal to twice as many right angles as the polygon has sides, less four; the sum of all the angles of the polygon will be equal to an even number of right angles,... | |
 | Euclides - 1816 - 588 sider
...of a triangle, &c. QED COR. 1. 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 sides. For any rectilineal figure ABCDE, can be divided into as many triangles as the figure... | |
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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 sides. 
