 | John Keill - 1723 - 444 páginas
...the Angle AFE JL 8 J( fhall bef equal to the Angle BFE. But when a Right Line flanding upon a Right Line makes the adjacent Angles equal to one another, each of the equal Angles is ia Right Angle. Wherefore AFE, or BFK is a Right Angle. And therefore the Right Line... | |
 | Euclid, John Keill - 1733 - 444 páginas
...Therefore the Angle * 8- i. AD G is * equal to the Angle GD B. But when a Right Line ftanding upon'a Right Line, makes the adjacent Angles equal to one another, each of the 10. i. equal Angles will f be a Right Angle. Wherefore the Angle GDB is a Right Angle. But FDB is alfo... | |
 | Robert Simson - 1762 - 488 páginas
...letter placed at that point; as the angle ' at E.' X. When a ftraight line ftanding on another ftrailrht line makes the adjacent angles equal to one another,...each of the angles is called a right angle; and the ltraight line which ftands on the other is called a perpendicular to it. • XI. An obtufe angle is... | |
 | John Keill - 1772 - 462 páginas
...the Angle AFE fhall be f equal to the Angle B FE. But when af 8. r . Right Line ftanding upon a Right Line makes the adjacent Angles equal to one another, each of the equal Angles is Ja Jlrght Angle. Wherefore AFE, orJ0'/. 10. i. BFE, is a Right Angle. And therefore... | |
 | Robert Simson - 1775 - 534 páginas
...letter placed at that point; < as the angle at L., X. When a ftraight line flanding on another ftraight line makes the adjacent angles equal to one another,...each of the angles is called a right angle ; and the ftraight line which ftands on the other is called a perpendicular to it. XI. An obtufe angle is that... | |
 | Euclid - 1781 - 552 páginas
...a letter placed at that ] as the Angle at E.' X. When a ftraight line (landing on another ftraight line makes the adjacent angles equal to one another,...each of the angles is called a right angle; and the ftraight line which (lands on the other is called a perpendicular I to it. XI. An obtufe angle is that... | |
 | Robert Simson - 1781 - 534 páginas
...letter placed at that point; as the angle at E.' X. When a ftraight line ftanding on another ftraight line makes the adjacent angles equal to one another,...each of the angles is called a right angle ; and the ftraight line which ftands on the other is called a perpendicular to it. XI. An obtufe angle is that... | |
 | John Keill - 1782 - 476 páginas
...Therefore the Angle ADG is * equal to the Angle GD B. But when 3*8.,. Right Line ftandmg upon a Right Line makes the adjacent Angles equal to one another, each of the equal Angles will f be a Right Angle. Wherefore fZ?»/.io.» F the the Angle GDB is a Right Angle.... | |
 | Thomas Beddoes - 1793 - 196 páginas
...whether they are plane or otherwife. DEFINITION X, When a Jlfaight line ftanding on another Jiraight line makes the adjacent angles equal to one another,...each of the angles is called a right angle, and the line which Jlands on the other is called a perpendicular to it. Here we have an appeal made to the... | |
 | Euclid, John Playfair - 1795 - 462 páginas
...letter placed at that point ; as the angle at E.' VII. When a ftraight line ftanding on another ftraight line makes the adjacent angles equal to one another,...each of the angles is called a right angle ; and the ftraight line which ftunds on the other is called a per- . pendicular to it. • VIIL vm. An obtufe... | |
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When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle; and the straight line which stands on the other is called a perpendicular to it. VIII. An obtuse angle is... 
