| John William Norie, J. W. Saul - Nautical astronomy - 1917 - 642 pages
...is the triangle required. PROPOSITION If a straight line falling upon two other straight lines makes **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... | |
| Great Britain. Board of Education - English language - 1924 - 70 pages
...exterior angle equal to the interior and opposite angle on the same side or the two interior angles on **the same side together equal to two right angles, the two straight lines** are parallel." " If a straight line falling across two other straight lines makes the two interior... | |
| Euclid - Geometry - 1933 - 328 pages
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| G.E. Martin - Mathematics - 1997 - 536 pages
...straight lines will be parallel to one another. (Corollary 21.6) 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... | |
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