 | Euclid, John Playfair - Geometry - 1853 - 336 pages
...given straight line AB. PROP. XIII. THEOR. The angles which one straight line makes with another upon one side of i't, are either two right angles, or are together eqval to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA,... | |
 | William Somerville Orr - Science - 1854 - 534 pages
...PROPOSITION XIII.— THEOREM. T!te angles which one straight line (AB) makes with another (DC) upon me side of it, are either two right angles, or are together equal to two right anglet. For the angle А В С is either equal to ABD, or it is not. * Def. 8. If AB С be = AB D,... | |
 | Euclides - 1855 - 270 pages
...the straight line AB make with СD, upon one side of it, the two angles С BA, A 3 D. The*e angles are either two right angles, or are together equal to two right angles. For if the angle С BA bo equal to the angle ABD, each of them is a right angle (Def. 10). But if the... | |
 | John Playfair - Euclid's Elements - 1856 - 346 pages
...line AB. PROP. XIII. THEOR. The angles which one straight line makes with another upon one side uf it, are, either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right angles, or are... | |
 | Henry White - 1856 - 168 pages
...parallelogram, proportion, reciprocal proportion. 17 The angles which one straight line makes with another upon one side of it are either two right angles, or are together equal to two right angles. 18 Divide a straight line into two parts, so that the rectangle contained by the whole and ono of the... | |
 | Cambridge univ, exam. papers - 1856 - 200 pages
...divided into two isosceles triangles. 2. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. 3. If a straight line fall upon two parallel straight lines, it makes the alternate angles equal to... | |
 | Elias Loomis - Conic sections - 1857 - 242 pages
...equal to each other. PROPOSITION II. THEOREM. The angles which one straight line makes w^tk another, one side of it, are either two right angles, or are together equJ< to two right angles. Let the straight line AB make with CD, upon one side of it, the angles ABC,... | |
 | W. Davis Haskoll - Civil engineering - 1858 - 422 pages
...use in surveying : — The 13th, Book I. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. The 14th, Book I. If at a point in a straight line, two other straight lines, upon the opposite sides... | |
 | War office - 1858 - 578 pages
...(1) 49084036 (2) 901. •• Euclid. 1. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. 2. The straight lines which join the extremities of two equal and parallel straight lines towards the... | |
 | Elias Loomis - Conic sections - 1858 - 256 pages
...right angles. Let the straight line AB make with CD, upon one side of it, the angles ABC, ABD ; these are either two right angles, or are together equal to two right angles. For if the angle ABC is equal to ABD, each of them is a right angle (Def. 10) ; but c K D if not, suppose... | |
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The angles which one straight line makes with another upon one tide of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right... 
