| Daniel Pedoe - Mathematics - 1988 - 468 pages
...one another, the straight lines will be parallel to one another. 28 If a straight line falling on two **straight lines make the exterior angle equal to the interior and opposite** angle on the same side, or the interior angles on the same side equal to two right angles, the straight... | |
| Saul Stahl - Geometry, Non-Euclidean - 1993 - 320 pages
...the straight lines will be parallel to one another. Proposition 28. // o straight line falling on two **straight lines make the exterior angle equal to the interior and opposite** angle on the same side, or the interior angles on the same side equal to two right angles, the straight... | |
| Euclid - 2001 - 420 pages
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