 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 two interior angles upon the same side together...  The Elements of Geometry, Symbolically Arranged - Side 39av Great Britain. Admiralty - 1846Uten tilgangsbegrensning - Om denne boken
 | Judith Cederberg - 2004 - 472 sider
...straight lines will be parallel to one another. 28. If a straight line falling on two straight lines makes 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 lines will be parallel... | |
 | Euclid - 2001 - 420 sider
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 | Richard J. Trudeau - 2001 - 270 sider
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 | R. H. Warn, John G. Horner - 2002 - 292 sider
...of every triangle has the greater angle opposite to it. (Enc. I. 18.) (d) If a straight line fall on two parallel straight lines, it makes the alternate angles equal to one another. (Euc. I. 29.) (e) The opposite sides and angles of a parallelogram are equal to one another. (Euc.... | |
 | William R. Shea - 2003 - 374 sider
...postulate of parallel lines to show that a straight line that falls on two parallel straight lines makes the exterior angle equal to the interior and opposite angle on the 'CEuvres de Pascal, I, p. 606, and pp. 574-575 for the first version. same side, and hence that the... | |
 | Joseph Manago - 2005 - 154 sider
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 | Saul Stahl - 2008 - 270 sider
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