 | 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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When a straight line cuts two other straight lines, if (i) a pair of alternate angles are equal, or (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... 
