| 1882
...In corollaries to the same proposition it is shown that all the internal angles of any rectilineal **figure, together with four right angles, are equal to twice as many right angles as the figure has** sides ; also, that all the external angles of any rectilineal figure formed by producing the sides... | |
| College of preceptors - 1882
...for the demonstration of which this one is referred to. 5. 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. 6. The opposite sides and angles of a parallelogram are equal ; and the diameter bisects the... | |
| 1882
...triangle are equal to two right angles; and that all the interior angles of any rectilineal n'gure, **together with four right angles, are equal to twice as many right angles as the figure has** sides. 3. If the square described upon one of the sides of a triangle is equal to the squares described... | |
| Marianne Nops - 1882
...two-thirds of a right angle or 60°. III. All the interior angles of any rectilineal figure added to **four right angles are equal to twice as many right angles as the figure has** sides. Now, any figure can be divided into as many triangles as it has sides by drawing lines from... | |
| Euclid, Isaac Todhunter - 1883 - 400 Seiten
...twice as many right angles as the figure has sides. But, by the foregoing Corollary all the interior **angles of the figure, together with four right angles,...equal to twice as many right angles as the figure has** sides. Therefore all the interior angles of the figure, together with all its exterior angles, are... | |
| Joseph Hughes - 1883
...generally understood abbreviations for words may be used.] 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. See Corollary to Euclid I. 32. If the figure be equiangular and four interior angles be equal... | |
| Moffatt and Paige - 1883
...Therefore, if a side of any triangle be produced, etc. 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,... | |
| 1883
...generally understood abbreviations for irorJs may be used.] 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. See Corollary to Euclid I. 32. If the figure be equiangular and four interior angles be e ]ual... | |
| Mathematical association - 1883
...triangle the two acute angles are complementary. THEOR. 26. All the interior angles of any convex polygon **together with four right angles are equal to twice as many right angles as the** polygon has sides. THEOR. 27. The exterior angles of any convex polygon made by producing the sides... | |
| Stewart W. and co - 1884
...F, which is the common vertex of the triangles; that is, together with four right angles. Therefore **all the angles of the figure, together with four right...equal to twice as many right angles as the figure has** sides. XXXIII. — The straight lines which join the extremities of two equal and parallel straight... | |
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