 | Charles Bonnycastle - 1834 - Liczba stron: 670
...expressed as the following proposition : "The interior angles of any closed plane figure are together equal to twice as many right angles as the figure has sides, minus four right angles." 206. And as a second application of the principle in question, or, which... | |
 | Euclid - 1835 - Liczba stron: 540
...&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 has sides, by... | |
 | John Playfair - 1835 - Liczba stron: 336
...equal to all the angles of the figure, together with four right angles, that is, the anhas gles of the figure are equal to twice as many right angles as the figure sides, wanting four. COR. 1. All the exterior angles of any rectilineal figure are togethe1" equal... | |
 | 1835 - Liczba stron: 684
...is equal to two right angles (2.) ; all the interior angles, together with all the exterior angles, are equal to twice as many right angles as the figure has angles. But all the exterior angles are, by the former part of the proposition, equal to four right... | |
 | 1836 - Liczba stron: 488
...angles ; and the three interior angles of every triangle are equal to two right angles. Сон. 1. All the interior angles of any rectilineal figure...the figure has sides, wanting four right angles» 2. All the exterior angles of any rectilineal figure are to. gether equal to four right angles. XXXIII.... | |
 | John Playfair - 1836 - Liczba stron: 148
...proved. 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 sides. For any rectilineal figure ABCDE can be divided into as many triangles as the figure has sides, by... | |
 | Adrien Marie Legendre - 1836 - Liczba stron: 394
...taken as many times, less two, as the polygon has sides (Prop. XXVI.) ; that is, equal to twice ay many right angles as the figure has sides, wanting four right angles. Hence, the interior angles plus four right .. -i angles, is equal to twice as many right angles as... | |
 | Commissioners of National Education in Ireland - 1837 - Liczba stron: 284
...you go along, as also the angles. angles, A, B, C, &c. of the figure together, and their sum must be equal to twice as many right angles as the figure has sides, wanting four right angles. But when the figure has a re-enterant angle, as F, measure the external angle, which is less than two... | |
 | Adrien Marie Legendre - 1837 - Liczba stron: 376
...two right angles, taken as many times, less two, as the polygon has sides (Prop. XXVI.) ; that is, equal to twice as many right angles as the figure has sides, wanting four right angles. Hence, the interior angles plus four right angles, is equal to twice as many right angles as the polygon... | |
 | Euclid, James Thomson - 1837 - Liczba stron: 410
...side, &c. 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... | |
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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. 
