| Robert Simson - Trigonometry - 1762 - 488 pages
...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 - Mathematics - 1769 - 536 pages
...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 - Trigonometry - 1775 - 534 pages
...Book I. 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.** For, if the angle CBA be equal to ABD, each of them is a. A A i. Ax. a Def. to. r;ght » angle ; but,... | |
| Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...PROP. XIII. THEO R. THE angles which one ftraight line makes with. another upon the one fide of it, arc **either two right angles, or are together equal to two right angles. . Let the** ftraight line AB make with CD, Upo-1 one fide of ui the angles CBA, ABD ; thefe ar. euher two iight... | |
| Alexander Ingram - Trigonometry - 1799 - 374 pages
...make with CD, upon one- fide of it, the a 5.Poft. b i0. i. BooK I. the angles CBA, ABD ; thefe 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 a A .Ax. Dfy y* ^^ *1> f* n \j U 3a \f a Dcf.... | |
| John Playfair, Euclid - Circle-squaring - 1804 - 468 pages
...PROB. XIII. THEO R. 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 ftraight line AB make with CD, upon one fide of it, the angles CBA, ABD ; thefe are either... | |
| Robert Simson - Trigonometry - 1804 - 530 pages
...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.... | |
| John Playfair - Euclid's Elements - 1806 - 320 pages
...done. PROP. XIII. THEOR. THE angles which qne straight line makes with another upon one side of it, are **either two right angles, or are together equal to...it, the angles CBA, ABD ; these are either two right** or are together equal to two right angles. C Book I. * Def. 7. b 11. 1. " c 2.' Ax. d 1. Ax. For, if... | |
| Robert Simson - Trigonometry - 1806 - 546 pages
...the one side of it, are either two right angles, or are together equal to two right angles. 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 equal to two right... | |
| Euclides - 1816 - 588 pages
...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;... | |
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