 | Euclides - 1837 - 112 sider
...another, and the exterior angle equal to the interior and opposite upon the same side; and the two interior angles upon the same side together equal to two right angles. Steps of the Demonstration. Suppose that Z AGH ^ GHD, and that AGH > GHD, Then prove, on that supposition,... | |
 | Andrew Bell - 1837 - 290 sider
...the exterior angle equal to the interior and opposite upon the same side of the line, or makes the interior angles upon the same side together equal to two right angles, the two straight lines shall be parallel to one another. Let the straight line EF, which falls upon... | |
 | Euclides - 1838 - 264 sider
...and the exterior angle equal to the interior and opposite upon the tame side ; and likewise the two interior angles upon the same side together equal...straight lines AB, CD : the alternate angles AGH, GHD shall be equal to one another : and the exterior angle EGB shall be equal to the interior nnd opposite,... | |
 | Euclides - 1841 - 378 sider
...makes the exterior angle equal to the interior and opposite upon the same side of the line: or make the interior angles upon the same side together equal to two right angles; the two straight lines shall be parallel to one another. Let the straight line EF, which falls upon... | |
 | Euclides - 1842 - 316 sider
...and the exterior angle equal to the interior and opposite, upon the same side ; and likewise the two interior angles upon the same side together equal...are equal to one another ; and the exterior angle EG в is equal to the interior and opposite, upon the same side, GHD; and the two interior angles BGH,... | |
 | William Chambers, Robert Chambers - 1842 - 938 sider
...and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal to two right angles. Now, the assertion contained in this theorem is both easy of comprehension and evident to the senses... | |
 | John Playfair - 1842 - 332 sider
...the exterior angle equal to the interior and opposite upon the same side of the line ; or makes the interior angles upon the same side together equal to two right angles ; the two straight lines are parallel to one another. Let the straight line EF, which falls upon the... | |
 | Euclides - 1845 - 546 sider
...and the exterior angle equal to the interior and opposite upon the same side ; and likewise the two interior angles upon the same side together equal...line EF fall upon the parallel straight lines AB, CD. Then the alternate angles A GH, G HD shall be equal to one another ; the exterior angle EGB shall be... | |
 | Euclid, James Thomson - 1845 - 382 sider
...another ; (2) the exterior angle equal to the interior and remote upon the same side ; and (3) the two interior angles upon the same side together equal to two right angles, t Let the straight lines AB, CD be parallel, and let EF fall upon them ; then (1) the alternate angles... | |
 | Euclid - 1845 - 218 sider
...the exterior angle equal to the interior and opposite upon the same side of the line ; or makes the interior angles upon the same side together equal to two right angles; the two straight lines ihatt be parallel to one another. Let the straight line EF, which falls upon... | |
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If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to one another ; and the exterior angle equal to the interior and opposite upon the same side ; and likewise the too interior angles upon the same side together... 
