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 - Page 37by Great Britain. Admiralty - 1846Full view - About this book
| William Nicholson - Natural history - 1821 - 406 pages
...straight line may be drawn parallel to that straight line, or that straight line produced. 14. Theorem IV. **If a straight line fall upon two parallel straight...the same side, together, equal to two right angles** If AB (fig. 5.) be parallel to CD, and E Fcut them in the points HG, then the angle AHG equals the... | |
| Euclid, Robert Simson - Geometry - 1821 - 514 pages
...angles: therefore AB is parallel to CD. Wherefore,' if a straight line, &c. QED PROP. XXIX. THEOR. **IF a straight line fall upon two parallel straight...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... | |
| Peter Nicholson - Mathematics - 1825 - 372 pages
...therefore AB is parallel to С D. Wherefore if a straight line, &c. OKD Proposition ХХГХ. Theorem, **If a straight line fall upon two parallel straight...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... | |
| Robert Simson - Trigonometry - 1827 - 513 pages
...thts proposttton. * 15. 1. t 1 Ax. f2 Ax. * 13. 1. t 1 Ax. PROP. XXIX. THEOR. If a straight line Jail **upon two parallel straight lines, it makes the alternate...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... | |
| John Radford Young - Euclid's Elements - 1827 - 208 pages
...a point between G and K, therefore, &c. PROPOSITION n. ,(29. I. Euclid.) If a straight line fall on **two parallel straight lines it makes, the alternate angles equal to one another** ; the exterior eqttal to the interior and opposite on the same side ; and likewise the two interior... | |
| John Playfair - Geometry - 1829 - 186 pages
...parallel. A straight line intersecting two parallel straight lines makes the alternate angles equal, **and the exterior angle equal to the interior and opposite angle on the same side** of the cutting line, and the sum of the two interior angles on the same side equal to two right angles.... | |
| Pierce Morton - Geometry - 1830 - 584 pages
...those two straight lines are parallel • . • cor. 13 (f) And conversely, if a straight line falls **upon two parallel straight lines, it makes the alternate angles equal to one another,** the exterior angle equal to the interior and opposite upon the same side, and the two interior angles... | |
| Thomas Perronet Thompson - Euclid's Elements - 1833 - 150 pages
...interior angles &c. Which was to be demonstrated. PROPOSITION XXIX. THEOREM. — If a straight line falls **upon two parallel straight lines, it makes the alternate angles equal to one another.** Let the straight line EF fall upon the •? parallel straight lines AB, CD ; the alter- ^ - ^& - B... | |
| John Playfair - Euclid's Elements - 1833 - 333 pages
...angles ; therefore AB is parallel to CD. Wherefore, if a straight line, &c. QED PROP. XXIX. THEOR. **If a straight line fall upon two parallel straight lines, it makes the** alter' male angles equal to one another ; and the exterior angle equal to the interior and opposite... | |
| Robert Simson - Trigonometry - 1835 - 513 pages
...therefore AB is parallel to CD. Wherefore, " if a straight line," &c. QED PROP. XXIX. THEOR. Sec the **If a straight line fall upon two parallel straight...; and the exterior angle equal to the interior and** opi>osite upon the same side ; and likewise the two interior angles upon the same side together equal... | |
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