| McGill University - 1910 - 92 pages
...two straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. When **a straight line cuts two other straight lines, if...angles, then the two straight lines are parallel;** and the converse. Straight lines which are parallel to the same straight line are parallel to one another.... | |
| University of Oxford - Universities and colleges - 1915 - 620 pages
...two straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. When **a straight line cuts two other straight lines, if...right angles, then the two straight lines are parallel** ; and the converse. Straight lines which are parallel to the same straight line are parallel to one... | |
| University of Bombay - 1912 - 1228 pages
...two straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. When **a straight line cuts two other straight lines, if...two right angles, then the two straight lines are** paiallel ; and the converse. Straight lines which are parallel to the same straight line are parallel... | |
| University of Birmingham - 1917 - 852 pages
...straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. — When **a straight line cuts two other straight lines, if...equal to two right angles, then the two straight lines** arc parallel ; and the converse. Straight lines wliich are parallel to the same straight line are parallel... | |
| University of New Zealand - 1904 - 362 pages
...two straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. When **a straight line cuts two other straight lines, if...equal to two right angles, then the two straight lines** aru parallel ; and the converse. Triangles and Rectilinear Figures. The sum of the angles of a triangle... | |
| University of Bombay - 1908 - 954 pages
...the vertically opposite angles are equal. Parallel Straight Lines. ЛУЬеп a straight line cute **two other straight lines, if (i) a pair of alternate...cutting line are together equal to two right angles,** thon the two straight lines are parallel ; and the converse. Straight lines which are parallel to the... | |
| University of Bombay - 1910 - 1080 pages
...other straight lines, if (i) a pau' of alternate angles are equal, •or (ii) a pair of coircsponding **angles are equal, or (iii) a pair of interior angles...right angles, then the two straight lines are parallel** ; and the converse. Straight lines which arc parallel to the same straight line are parallel to one... | |
| University of Cambridge - 1907 - 1636 pages
...straight lines intersect, the vertically opposite angles are equal. ParaUe.1 Straight Line». When **a straight line cuts two other straight lines, if...(ii) a pair of corresponding angles are equal, or** (¡ii) a pair of interior angles on the same side of the cutting line are together equal to two right... | |
| G. P. West - Geometry - 1965 - 362 pages
...other straight lines, those other two straight lines are parallel if either (ii) a pair of alternate **angles are equal, or (iii) a pair of interior angles...cutting line are together equal to two right angles.** (ii) Given. FG is a st. line cutting the two st. lines RST, XYZ at S, Y. Lai = Lat. F To prove that... | |
| University of Bombay - 1911 - 1028 pages
...intersect, the vertically opposite angles are equal. Parallel Straight Lines. When a straight line cute **two other straight lines, if (i) a pair of alternate...(ii) a pair of corresponding angles are equal, or** (,iii)a pair of interior angles on the same side of the cutting line are together equal to two right... | |
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