 | Robert Simson - 1762 - 488 σελίδες
...PROP. XIV. THE OR. IF at a point in a ftraight iine, two other ftraight lines, Qpon the oppofite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines fhall be in one and the fame ftraight line, At the point B in the ftraight... | |
 | Robert Simson - 1775 - 534 σελίδες
..."XIV. THEO R. IF, at a point in a ftraight line, two other ftraight lines, upon the oppofite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines fhall be in one and the fame ftraight line. ' ' At the point B in the ftraight... | |
 | Euclid - 1781 - 552 σελίδες
...XIV. T II EO R. IF, at a point in.a ftraight line, two other ftraight lines, upon the oppofite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines mall be in one and the fame ftraight line. At the point B in the ftraight... | |
 | John Playfair - 1795 - 462 σελίδες
...P. XIV. THEO R. IF, at a point in a ftraight line, two other ftraight lines, upon the oppofite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines fhall be in one and the fame ftraight line. At the point B in the ftraight... | |
 | Alexander Ingram - 1799 - 374 σελίδες
...FROP. XIV. THEOR. at a point in a ftraight line, two other ftraight lines, upon the oppoiite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines fliall be in one and the fame ftraight line. At the point B in the ftraight... | |
 | Robert Simson - 1804 - 528 σελίδες
...PROP. XIV. THEO R. IF at a point in a ftraight line, two other ftraight lines, upon the oppofite fides of it, make the adjacent angles together equal to two right angles, thefe two ftraight lines fhall be in one and the fame ftraight line. At the point B in the ftraight... | |
 | John Playfair - 1806 - 320 σελίδες
...together equal to two right angles. Wherefore, when a straight line, &c. C£. ED PROP. XIV. THEOR. IF, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two... | |
 | Robert Simson - 1806 - 548 σελίδες
...are together equal to two right angles. Wherefore, when a straight line, fcc. QED PROP. XIV. THEOR. IF, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two... | |
 | John Mason Good - 1813 - 714 σελίδες
...siile of it, are either two right angles, or are together rqual to two right angles. Prop. XIV. Tlieor. If, at a point in a straight line, two other straight lines, upon the opposite iidrs of it, make the adjacent angles together equal to t«-o right angles, these... | |
 | Euclides - 1816 - 592 σελίδες
...ABC are together equal to two right-angles. Wherefore when a straight line, &c. QED PROP. XIV. THEOR. IF, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to tw*o right angles, these... | |
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If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these two straight lines shall be in one and the same straight line. 
