 | War office - 1861 - 260 sider
...the exterior angle equal to the interior and opposite angle on the same side, and likewise the two interior angles upon the same side together equal to two right angles. 2. Draw a straight line from a given point without the circumference which shall touch a given circle.... | |
 | Benjamin Greenleaf - 1862 - 514 sider
...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 intersect the parallel lines А В, С D ; the alternate angles AGH, GHD are equal ; the exterior angle... | |
 | Benjamin Greenleaf - 1862 - 520 sider
...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, GHD Vj ____—•• — * are... | |
 | Benjamin Greenleaf - 1861 - 628 sider
...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 EP inter- j; sect the parallel lines AB, CD ; \ the alternate angles AGH, GHD V, _„_. L are equal... | |
 | Euclides - 1862 - 140 sider
...together equal to two right angles. (References— Prop. I. 13, 15; ax. 1, 2, 4, 12.) Hypothesis. — Let the straight line EF fall upon the parallel straight lines AB, CD. Sequence. — 1. The alternate angles AGH, GHD, shall be equal to one another. 2. The exterior angle... | |
 | Euclides - 1862 - 172 sider
...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 ; then the two straight lines shall be parallel to one another. (References — Prop. 1. 13, 15, 27... | |
 | Benjamin Greenleaf - 1863 - 504 sider
...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- j; sect the parallel lines AB, CD ; \ the alternate angles AGH, GHBV —" L are equal ; the... | |
 | Euclides - 1864 - 448 sider
...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 - 1864 - 262 sider
...equal to the interior anil opposite upon the same side ; and likewise the two interior angles upon Vie same side together equal to two right angles. Let the straight line UFfall upon the parallel straight lines AB, CD. Then the alternate angles A GH, GHD shall be equal... | |
 | Robert Potts - 1865 - 528 sider
...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... | |
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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... 
