| Robert Simson - 1762 - 466 pagina’s
...they are adjacent '• angles, but when a ftraight line (landing on a ftraight line makes thee- 8' l' **adjacent angles equal to one another, each of them is a right angle, and the ftraight** line which (lands upon the other is called a perpendicular to it. therefore from the given point C... | |
| Robert Simson - 1775 - 520 pagina’s
...CHG; and they are adjacent angles ; but when a ftraight line ftanding cet on a ftraight line makes **the adjacent angles equal to one another, each of them is a right angle, and the ftraight** line which flands upon the other is called a perpendicular to it; therefore from the given point C... | |
| John Playfair - 1795 - 400 pagina’s
...the angle AFE is equal b to the angle BFE : But when a flraight line ftanding upon another nv.ik.es **the adjacent angles equal to one another, each of them is a right** c angle: Therefore each of the angles AFE, Bl' E is a right angle ; wherefore the ftraight line CD,... | |
| Alexander Ingram - 1799 - 351 pagina’s
...angle , CHG ; and they are adjacent angles ; but when a ftraight line ftanding on a ftraight line makes **the adjacent angles equal to one another, each of them is a right angle, and the ftraight** line which ftands upon the other, is called a perpendicular to it ; therefore from the given point... | |
| Robert Simson - 1804
...and they are adjacent e. 8. i. :angles. but when a ftraight line flanding on a ftraight line makes **the adjacent angles equal to one another, each of them is a right angle, and the ftraight** line which ftands upon the other is called af perpen- f. to.Def.t. dicular to it. thereforefrom the... | |
| Euclid, John Playfair - 1804 - 440 pagina’s
...angle CHG ; and they are adjacent angles; but when a ftraight line Handing on a ftraight line makes **the adjacent angles equal to one another, each of them is a right angle, and the ftraight** line which llands upon the other is called a perpendicular to it ; therefore from the given point C... | |
| Euclid, Robert Simson - 1806 - 518 pagina’s
...and they are adjacent -angles ; but when a straight line standing e 8- 1• on a straight line make's **the adjacent angles equal to one another, each of them is a right angle, and the** straight line which stands upon the other is called a perpendicular to it ; therefore from the given... | |
| Euclides - 1814
...fore the angle AFE is equal b to the angle BFE: But when a straight linestanding upon another makes **the adjacent angles equal to one another, each of them is a right** 0 angle: Therefore each of the angles AFE, BFE, is a right angle ; wherefore the straight line CD,... | |
| John Playfair - 1819 - 333 pagina’s
...the angle AFE is equal (8. 1.) to the angle BFE. And when a straight line standing upon another makes **the adjacent angles equal to one another, each of them is a right** (7. Def. 1.) angle : Therefore each of the angles AF£, BFE is a right angle ; wherefore the straight... | |
| Euclid, Robert Simson - 1821 - 516 pagina’s
...angle CHG; and they are adjacent angles; but when a straight line standing on a straight line makes **the adjacent angles equal to one another, each of them is a** Tight angle, and the straight line which stands upon the other is called a perpendicular to it; therefore... | |
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