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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... "
Theoretical Geometry: Based on the Various Geometry Books by Godfrey and Siddons - Page vii
by Arthur Warry Siddons, Reginald Thomas Hughes - 1926 - 173 pages
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School Certificate Mathematics

Oxford and Cambridge Schools Examination Board - 1928 - 146 pages
...line cuts two other straight lines and (i) a pair of alternate angles are equal, L7 A' -• — u A n or (ii) a pair of corresponding angles are equal,...a pair of interior angles on the same side of the transversal are supplementary, then the two straight lines are parallel. EXERCISE 21 (Construction...
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School Certificate Mathematics. Geometry, Part I.

138 pages
...cuts two ether straight lines and (i) a pair of alternate angles are equal, ^ — A % •— • Lf n or (ii) a pair of corresponding angles are equal,...a pair of interior angles on the same side of the transversal are supplementary, then the two straight lines are parallel. EXERCISE 21 (Construction...
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The Bombay University Calendar, Volume 1

University of Bombay - 1916 - 654 pages
...intersect, the vertically opposite 'angles are equal. Parallel Straight Lines. When a straight line cnts two other straight lines, if (i) a pair of alternate...are equal, or (ii) a pair of corresponding angles arc equal, or (iii) a pair of interior angles on the same side of the cutting line are togather equal...
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The Bombay University Calendar, Volume 1

University of Bombay - 1914 - 1228 pages
...etraight lines intersect, the vertically opposite angles are equal. Parallel Straig/it Linea. Wbem » straight line cuts two other straight lines, if (i) a pair of alternate angles are equal, or (ii) a {air of corresponding angles are equal, or {Ш) » pair of interior angles on the same side of the...
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The Bombay University Calendar, Volume 1

University of Bombay - 1918 - 654 pages
...vertically opposite angles are equal. Parallel Straight Line». When a straight line cute two otner straight lines, if (i) a pair of alternate angles are equal, or (ii) a pair of corresponding angles arc equal, or (iii) a pair of interior angles on the same side of the cutting line are together equal...
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Elementary Geometry Plane (Classic Reprint)

James McMahon - 2018 - 244 pages
...parallel straight lines, (1) alternate angles are equal, (2) corresponding angles are equal, (3) the interior angles on the same side of the cutting line are together equal to two right angles. fig. 86. Data AB cuts the parallel st. lines CD, EF at G, H. Toprovethat (1) L CGH =alt. L GHF, (2)...
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Geometry for Beginners

102 pages
...(interior angles). [Theorem i. 5 (iii).] When a straight line cuts two parallel straight lines, the interior angles on the same side of the cutting line are together equal to two right angles. Ex. 177. Copy fig. 48 freehand. If CD, EF are parallel A and /AGD = 72°, find all the angles in the...
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A Shorter Geometry

352 pages
...line cuts two other straight lines and makes a pair of alternate angles equal to one another, then the interior angles on the same side of the cutting line are together equal to two right angles. Use Facts D, E. DEF. A plane figure bounded by four straight lines is called a quadrilateral. DBF....
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A Shorter Geometry

464 pages
...line cuts two other straight lines and makes a pair of alternate angles equal to one another, then the interior angles on the same side of the cutting line are together equal to two right angles. Use Facts D, E. k\I DEF. A plane figure bounded by four straight lines is called a quadrilateral. DEF....
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A First Course of Geometry

130 pages
...lines and make either (i) a pair of alternate angles equal, or (ii) a pair of corresponding angles equal, or (iii) a pair of interior angles on the same side of the line together equal to two right angles, the two straight lines are parallel. (i) Let the two straight...
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