 Angles at a point. — If a straight line stands on another straight line, the sum of the two angles so formed is equal to two right angles; and the converse. If two straight lines intersect, the vertically opposite angles are equal. Parallel straight...  Bulletin - Page 171915Full view - About this book
 | Charles Godfrey, Arthur Warry Siddons - Geometry - 1903 - 384 pages
...the position OD and then on to OC ; will OP and OQ. have turned through the same angle? THEOREM 1. If a straight line stands on another straight line,...two angles so formed is equal to two right angles. N COB fig. 75. Data The st. line AO meets the st. line BC at O. To prove that L. BOA + L. AOC = 2 rt.... | |
 | University of Calcutta - Universities and colleges - 1907 - 458 pages
...pencil, dividers, pencil compasses, and a straight ruler showing centimetres and inches. THEORETICAL. Angles at a point. If a straight line stands on another...vertically opposite angles are equal. Parallel straight lines. If a straight line, cutting two other straight lines, makes — (i) the alternate angles equal,... | |
 | University of Birmingham - 1907 - 668 pages
...in or about a given circle. Const ruction of a square equal in area to a given polygon. SCHEDULE B. Angles at a Point. — If a straight line stands on...the vertically opposite angles are equal. Parallel Siraiglit Lines. — When a straight line cuts two other straight lines, if (i) a pair of alternate... | |
 | University of Allahabad - 1907 - 528 pages
...in or about a given circle. Construction of a square equal in area to a given polygon. SCHEDULE B. ANGLES AT A POINT. If a straight line stands on another...formed is equal to two right angles ; and the converse. PARALLEL STRAIGHT LINES. When a straight line cuts two other straight lines, if (i) a pair of alternate... | |
 | University of Allahabad - 1908 - 568 pages
...in or about a given circle. Construction of a square equal in area to a given polygon. SCHEDULE B. ANGLES AT A POINT. If a straight line stands on another...intersect, the vertically opposite angles are equal. PABALLEL STBAIGRT LINES. When a straight line cuts two other straight lines, if (i) a pair of alternate... | |
 | University of Melbourne - 1909 - 984 pages
...straight lines into a given number of equal parts or into parts in any given proportions. SCHEDULE B. Angles at a Point. If a straight line stands on another...vertically opposite angles are equal. Parallel Straight Lines. When a straight line cuts two other straight lines, if (i) a pair of alternate angles are equal,... | |
 | University of Calcutta - 1909 - 450 pages
...dividers, pencil compasses, and a straight ruler showing centimetres and inches. THEORETICAL. A ngles at a point. If a straight line stands on another straight...vertically opposite angles .are equal. Parallel straight lines. If a straight line, cutting two other straight lines, makes — (i) the alternate angles equal,... | |
 | University of Allahabad - 1909 - 638 pages
...in or about a given circle. Construction of a square equal in area to a given polygon. Schedule B. ANGLES AT A POINT. If a straight line stands on another...intersect, the vertically opposite angles are equal. PAHAI.LEL STRAIGRT LINES. When a straight line cuts two other straight lines, if (i) a pair of alternate... | |
 | Mathematics - 1909 - 605 pages
...in or about a given circle. Construction of a square equal in area to a given polygon. SCHEDULE B. Angles at a Point. If a straight line stands on another...formed is equal to two right angles; and the converse. Parallel Straight Lines. When я straight line cuts two other straight lines, if (i) a pair of alternate... | |
 | University of Allahabad - 1910 - 682 pages
...in or about a given circle. Construction of a square equal in area to a given polygon. ScJicdule B. ANGLES AT A POINT. If a straight line stands on another...vertically opposite angles are equal. PARALLEL STRAIGHT LINES. When a straight line cuts two other straight lines, if (i) a pair of alternate angles are equal,... | |
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