 | Edward Wells - 1714 - Liczba stron: 348
...th«i Sum of all the Angles in all the Tri* angles, into which the Figure is divided, will together be equal to twice as many right Angles, as the Figure has Sidesj But the Angles about P, the inward Point of each Figure, wherein all fhe Triangles concur, are... | |
 | Edward Wells - 1723 - Liczba stron: 358
...Right-, the Sum of all the Angles in all the Tri~ angles, into which the Figure is divided, will together be equal to twice as ma-ny right Angles, as the Figure has Sides. But the Angles about P, the inward Point of each Figure, wherein all the Triangles concur, are (by Corol. 4.... | |
 | Euclid - 1765 - Liczba stron: 492
...is, 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... | |
 | Thomas Malton - 1774 - Liczba stron: 484
...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. 2. of... | |
 | Charles Hutton - 1788 - Liczba stron: 728
...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... | |
 | 1801 - Liczba stron: 658
...work ;• 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... | |
 | Thomas Hodson - 1806 - Liczba stron: 502
...the work ; — add all the inward angles ABC, &c. together ; and if the work be right, the fum will be equal to twice as many right angles as the figure has fides, except four right angles ; but when there is an angle that bends inwards, as at F, and you meafure... | |
 | Robert Simson - 1806 - Liczba stron: 546
...D, 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 has sides, by... | |
 | John Playfair - 1806 - Liczba stron: 320
...if a side of a triangle, &c. QED "7^ COR. 1. All the interior angles of any rectilineal figure are equal to twice as many right angles as the figure has sides, wanting four right angles. For any rectilineal figure ABCDE can be divided into as many triangles as... | |
 | Charles Hutton - 1807 - Liczba stron: 464
...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... | |
| |
Therefore all the interior angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides. 
