| McGill University - 1911 - 178 pages
...the vertically opposite angles are equal. When a straight) line cuts two other straight lines, if (f) **a pair of alternate angles are equal, or (ii) a pair...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 Allahabad - 1911 - 726 pages
...opposite angles are equal. PARALLEL STRAIGHT LINES. When a straight line cuts two other straight tines, **if (i) a pair of alternate angles are equal, or (ii)...are equal, or (iii) a pair of interior angles on the** sane side of the cutting line are together equal to two right angles, then the two straight lines are... | |
| Great Britain. Board of Education - Mathematics - 1912 - 632 pages
...straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. 3. "When **a straight line cuts two other straight lines, if...right angles, then the two straight lines are parallel** ; and the converse. 4. Straight lines which are parallel to the same straight line are parallel to... | |
| Great Britain. Board of Education - Education - 1912 - 1044 pages
...straight lines intersect, the vertically opposite angles are equal. Parallel Straight Lines. 3. When **a straight line cuts two other straight lines, if...right angles, then the two straight lines are parallel** ; and the converse. 4. Straight lines which are parallel to the same straight line are parallel to... | |
| University of Allahabad - 1912 - 918 pages
...two straight lines intersect, the vertically opposite angles are equal. PARALLEL STRAIGHT LIKES. When **a straight line cuts two other straight lines,' if...or (iii) a pair of interior angles on the same side** oI the cutting line are together equal to two right angles, then the two straight lines are parallel... | |
| University of South Africa - Universities and colleges - 1913 - 768 pages
...if ( 1 ) a pair of alternate angles is equal, or (2) a pair of corresponding angles is equal, or (3) **a pair of interior angles on the same side of the cutting line** is together equal to two right angles, then the two straight lines are parallel, and conversely. Straight... | |
| Queensland. Department of Public Instruction - Education - 1914 - 284 pages
...diagrams to illustrate your definitions. 2. (a) When a straight line cuts two other straight lines, if **a pair of interior angles on the same side of the...angles, then the two straight lines are parallel. (6)** Give the enunciation only of the converse of this theorem. 3. Prove that the bisectors of the base... | |
| University of Allahabad - 1914 - 752 pages
...corresponding angles are equal, or (iii) a pair of interior angles on the ваше side of the cut' ting **line are together equal to two right angles, then the two straight lines are parallel** ; and the converse. Straight lines which are parallel to the same straight Hoe are parallel to one... | |
| Education - 1915 - 906 pages
...straight lines intersect, the vertically opposite angles are equal. Parallel straight KIMS.— 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.... | |
| Education - 1915 - 816 pages
...intersect, the vertically opposite angles are equal. Parallel straight lines. — When a straight line cuta **two other straight lines, if (i) a pair of alternate...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.... | |
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