| George Lees - 1826
...to all the angles of the figure, together with four right angles ; that is, the angles of the figure **are equal to twice as many right angles, as the figure has sides** wanting four. PROP. XIII. THEOREM. If two triangles, BAG, EOF, have two angles, BAG, ABC, and a side... | |
| Robert Simson - 1827 - 513 páginas
...common vertex of the tri• 2 Cor. angles; that is * together with four right angles. There1s, 1. fore **all the angles of the figure, together with four right...twice as many right angles as the figure has sides.** COR. 2. All the exterior angles of any rectilineal figure are together equal to four right angles.... | |
| John Radford Young - 1827 - 208 páginas
...in each triangle amounts to two right angles, therefore the angles of all the triangles are together **equal to twice as many right angles as the figure has sides,** that is to say, the sum of the angles of the polygon, together with those about the point within it,... | |
| Euclid, Dionysius Lardner - 1828 - 324 páginas
...has sides (XXXII) ; but the angles at the point F are equal to four right angles (83) ; and therefore **the angles of the figure, together with four right...twice as many right angles as the figure has sides.** This is the first corollary in the Elements, and the following is the second. (135) COR. 11. — The... | |
| Ferdinand Rudolph Hassler - 1828 - 159 páginas
...angles, as AGD, GDE, and so on, standing in equal segments, are equal to one another; and their sum being **equal to twice as many right angles as the figure has sides** wanting four: that is, eight right angles, each of these angles of the hexagon is equal eight sixths... | |
| John Playfair - 1829 - 186 páginas
...to all the angles of the figure, together with four right angles: that is, the angles of the figure **are equal to twice as many right angles as the figure has sides,** wanting four. Therefore, all the interior angles &.<•QED Com. All the interior angles of any quadrilateral... | |
| Thomas Curtis - 1829
...twice as 118 119 липу right angles as the figure has sides. Hence the interior angles of the figure **are equal to twice as many right angles as the figure has sides** wanting four right angles. Cor. 1. All the interior angles of a quadrilateral figure are together equal... | |
| Pierce Morton - 1830 - 272 páginas
...angle, 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... | |
| Euclid - 1833 - 183 páginas
...figure has sides (1): but the angles at the point F are equal to four right angles (2); and therefore **the angles of the figure, together with four right...twice as many right angles as the figure has sides.** Cor. 7. The external angles of any rectilineal figure are together equal to four right angles. For... | |
| Thomas Perronet Thompson - 1833 - 150 páginas
...isf equal to two right angles ; all the interior together with all the exterior angles of the figure, **are equal to twice as many right angles as the figure has sides.** But (by Cor. 1 .) all the interior angles are together equal to twice as many right angles as the figure'... | |
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