 | Robert Simson - 1762 - 488 pàgines
...Book!. Let the ftraight line AB make with CD, upon one fide of it, the Vxv^ angles CBA, ABP ; thefe are either two right angles, or are together equal to two right angles. a. Def. 10. For if the angle CBA be equal to ABD, each of them is a right ^ E ri Ax. di Ax. B B angle.... | |
 | Joseph Fenn - 1769 - 536 pàgines
...PROPOSITION XIII. THEOREM FI. HF angles which one ftraight line FC makes with another AB upon pre fide of it, are either two right angles, or are together equal to two right angles. Hypothefis. Thefis. EC is aßraight line meeting I. Either each of У ACE, ECB, is a L.. AB in the... | |
 | Robert Simson - 1775 - 534 pàgines
...be done. PROP. XIII. THEO R. angles which one ftraight line makes with another upon one ftde of it, are either two right angles, or are together equal to two right angles h 3. Port, c lo. t. - Def. t. Book I. Let the ftraight line AB make with CD, upon one fide, of it,... | |
 | Robert Simson - 1781 - 534 pàgines
...Pod: Book I. Let the ftraight line AB make with CD, upon one fide of if, 1 the angles CBA, ABD ; thefe are either two right angles, or are together equal...angle CBA be equal to ABD, each of them is a right* AE a. Def. i0. DBG bni angle. but if not, from thepoint B draw BE at right anglesbto CD. therefore... | |
 | Euclid - 1781 - 552 pàgines
...Let the ftraight line AB make with CD, upon one fide of it, the angles CBA, ABD ; thefe are cither two right angles, or are together equal to two right...if the angle CBA be equal to ABD, each of them is a A D B i def. i0. r;j,ht a angle; but, if not, from the point B draw BE at right b it. t. angles b to... | |
 | Alexander Ingram - 1799 - 374 pàgines
...done. PROP. XIII. THEOR. THE angles which one ftraight line makes with another upon the one fide of it, are either two right angles, or are together equal to two right angles. Let the flraight line AB make with CD, upon one- fide of it, the a 5.Poft. b i0. i. BooK I. the angles... | |
 | Robert Simson - 1804 - 530 pàgines
...angles. Poft Let the ftraight line AB make with CD, upon one fide of it* the angles CBA, ABD ; thefe are either two right angles, or are together equal to two right angles. a. Def. 10. For if the angle CBA be equal to ABD, each of them is a right • AE b. it. I. c. 2. Ax.... | |
 | Robert Simson - 1806 - 546 pàgines
...Book I. Let the straight line AB make with CD, upon one side of it, *— v— ' the angles CBA, ABD; these are either two right angles, or are together...if the angle CBA be equal to ABD each of them is a aDef.10. right > angle; but if not, from the point B draw BE at right AEA D B C D B C c 2. Ax. b 11.... | |
 | Euclides - 1816 - 588 pàgines
...BouK I.. Let the straight line AB make with CD, upon one side v-*"V-' of it, the angles CBA> ABD : these are either two right angles, or are together equal to two right angles. • * For if the angle CB A be equal to ABD, each of them is a % A ' E DB D B C 1 Def. 10. right4 angle; but if not, from... | |
 | John Playfair - 1819 - 354 pàgines
...one side of it, the angles CBA, ABD ; these are either two right angles, or are together equal to.two right angles. For, if the angle CBA be equal to ABD, each of them is rf right angle (Def. 7.) ; but, if not, from the point B draw BE at right anA T> C T) B gles (11. 1.)... | |
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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. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right... 
