| 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
...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 - Trigonometry - 1775 - 534 pages
...was to 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 - Trigonometry - 1781 - 534 pages
...done. PROP. XIII. THEO R. *T1 HE angles which one ftraight line makes with J- another upon one fide **of it, are either, two right . angles, or are together equal to two right angles.** Pod: Book I. Let the ftraight line AB make with CD, upon one fide of if, 1 the angles CBA, ABD ; thefe... | |
| 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... | |
| Alexander Ingram - Trigonometry - 1799 - 374 pages
...be 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... | |
| John Playfair, Euclid - Circle-squaring - 1804 - 468 pages
...Def. *• 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
...to be done. PROP. XIII. THEO R. THE angles which one ftraight line makes with another upon one fide **of it, are either two right angles, or are together equal to two right angles.** Poft Let the ftraight line AB make with CD, upon one fide of it* the angles CBA, ABD ; thefe are either... | |
| John Playfair - Mathematics - 1806 - 320 pages
...drawn to the given straight line AB. Which was to be done. PROP. XIII. THEOR. THE angles which qne **straight line makes with another upon one side of...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... | |
| Robert Simson - Trigonometry - 1806 - 546 pages
...Which was to be done. PROP. XIII. THEOR. THE angles which one straight line makes with another upon 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;... | |
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