| Euclid - 1822 - 179 sider
...equal (i)Prop. 13. to two right angles (1), therefore all the external angles, with all the internal, **are equal to twice as many right angles as the figure has sides** ; but the internal angles, together with four right angles, are equal to twice as many rightangles... | |
| Euclid, Rev. John Allen - 1822 - 494 sider
...two right angles [13. 1} ; therefore all the exterior and interior angles of the figure are together **equal to twice as many right angles as the figure has sides** ; but the interior angles are equal to twice as many right angles, except four, as the figure has sides... | |
| Charles Hutton - 1822
...triangles, is equal to two right angles (th. 17) ; therefore the sum of the angles of all the triangles is **equal to twice as many right angles as the figure has sides.** But the sum of all the angles about the point p, which are so / many of the angles of the triangles,... | |
| Edward Riddle - 1824 - 551 sider
...angles as the figure has sides. But all the interior angles, and four right angles, are also together **equal to twice as many right angles as the figure has sides,** (Theo. 25.) Hence the interior and the exterior angles of the figure are, together, equal to the interior... | |
| Peter Nicholson - 1825 - 372 sider
...QE I). Cor. 1 . All the interior angles of any rectilínea] 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... | |
| George Lees - 1826
...are also together equal to two right angles. Cor. 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 the figure... | |
| Robert Simson - 1827 - 513 sider
...E, zi. 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 Radford Young - 1827 - 208 sider
...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,... | |
| Ferdinand Rudolph Hassler - 1828 - 159 sider
...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 of one right... | |
| Euclid, Dionysius Lardner - 1828 - 324 sider
...COR. 10. — All the internal angles of any rectilinear figure ABCDE, together with four right angles, **are equal to twice as many right angles as the figure has sides.** Take any point F within the figure, and draw the right, lines FA, FB, FC, FD, and F E. There are formed... | |
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