| Euclides - 1865 - 402 pages
...equal to one another ; and the exterior angle equal to the interior and opposite angle npon the same side; and likewise the two interior angles upon the same side together equal to two right angles. Prop. 30. Straight lines which are parallel to the same straight line, are parallel to each other.... | |
| Robert Potts - 1865 - 528 pages
...make 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... | |
| John Playfair - Geometry - 1855 - 350 pages
...equal to the interior and opposite upon the same side ; and likewise the two interior angles fipo* the same side together equal to two right angles....straight lines AB, CD ; the alternate angles AGH, GHD are equal to one another; and the exterior angle EGB is equal to the interior and opposite, upon the... | |
| Benjamin Greenleaf - Geometry - 1866 - 328 pages
...alternate angles equal; also any exterior angle equal to the interior and opposite angle ; and the tivo interior angles upon the same side together equal to two right angles. Let the straight line EF inter- E sect the parallel lines AB, CD ; \ the alternate angles AGH, GHD are equal; the exterior angle... | |
| Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 pages
...angle equal to the interior and opposite angle on the same side; and also the two interior angles on the same side together equal to two right angles. Let the straight line EF fall on the two parallel straight lines AB, CD : the alternate angles AGH, GHD shall bo equal to one another,... | |
| Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 424 pages
...angle equal to the interior and opposite angle on the same side ; and also the two interior angles on the same side together equal to two right angles. Let the straight line EF fall on the two parallel straight lines AB, CD : the alternate angles AGH, GHD shall be equal to one another,... | |
| Benjamin Greenleaf - Geometry - 1868 - 340 pages
...the alternate angles equal; also any exterior angle equal to the 'interior and opposite angle ; and the two interior angles upon the same side together...equal to two right angles. Let the straight line EF inter- E sect the parallel lines AB, CD ; \ the alternate angles AGH, GHDV i \VT.... are equal ; the... | |
| Robert Potts - 1868 - 434 pages
...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 - 1871 - 136 pages
...angles equal to one another, 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. T Let the st. line EFMl on the parallel st. lines AB, CD. Then must I. LA GH= alternate L GHD. II.... | |
| Euclides, James Hamblin Smith - Geometry - 1872 - 376 pages
...the exterior angle equal to the interior and opposite upon the same side oj' the line, or make the interior angles upon the same side together equal to two right angles; the two straight lines are parallel to one another. Ao/ Let the st. line EF, falling on st. lines AB,... | |
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