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 Bøker Bok CA is at right angles to the given plane, it makes right angles with every straight line meeting it in that plane. But DAE, which is in that plane, meets CA : therefore CAE is a right angle. For the same reason BAE is a right angle. Wherefore the angle... Solid and Spherical Geometry and Conic Sections: Being a Treatise on the ... - Side 9
av A. Bell - 1837 - 164 sider
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1762 - 466 sider
...CA ; therefore CAE is a right angle, for the fame reafon BAE is a right angle, "wherefore the smgle CAE is equal to the angle BAE; and they are in one plane, D A which is impoiTible. Alfo, from a point above a plane there can be but one perpendicular to that...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - 1775 - 520 sider
...But DAE, which is in that plane, meets CA ; therefore C AE is a right angle. For the fame reafon BAE is a right angle. Wherefore the angle CAE is equal...the angle BAE ; and they are in one plane, which is impoflible. Affo, from a point above a plane, there can be but one perpendicular to that plane j for,...
Uten tilgangsbegrensning - Om denne boken ## The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 520 sider
...But DAE, which is in that plane, meets CA ; therefore CAE is a right angle. For the fame reafon BAE is a right angle. Wherefore the angle CAE is equal...the angle BAE ; and they are in one plane, which is impoffible. Alfo, from a point n. bove a plane, there can be but one perpendicular to that plane ;...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1781 - 466 sider
...plane. but DAE which is in that phne meets CA; therefore CAE is a right angle. for the fame reafon BAE is a right angle. wherefore the angle CAE is equal...the angle BAE ; and they are in one plane, which is impoftible. Alfo, from a point above a plane there can be but one perpendicular to that plane ; for...
Uten tilgangsbegrensning - Om denne boken ## Elements of Geometry;: Containing the First Six Books of Euclid, with Two ...

Euclid, John Playfair - 1795 - 400 sider
...But DAE, which is in that plane, meets CA ; therefore CAE is a right angle. For the fame reafon RAE is a right angle. Wherefore the angle CAE is equal to the angle BAE ; and they are in j5"~ ' A. "j3 one plane, which is impoffible. Alfo, from a point above a plane, there can be but one...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid: Also the Book of Euclid's Data ...cor. viz. The ...

Robert Simson - 1804
...but DAE which is in that plane meets CA ; therefore C AE is a right angle, for the fame reafon BAE is a right angle. wherefore the angle CAE is equal to the angle — BAE; and they are in one plane, -A* .A. JLJ which is impofllble. Alfo, from a point above a plane there can be but one perpendicular...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ...

Robert Simson - 1806 - 518 sider
...CA; therefore CAE is a right angle. For the same reason BAE is a right angle. Wherefore BC the ahgle CAE is equal to the angle BAE; and they are in one...Also, from a point above a plane, there can be but one perpendicular to that plane ; for, if there could be two, they would b 6. 11. be parallel b to one...
Uten tilgangsbegrensning - Om denne boken ## Elements of Geometry: Containing the First Six Books of Euclid, with a ...

John Playfair - 1806 - 311 sider
...plane, meets CA ; therefore CAE is a right angle. For the same reason BAE is a right angle. Wherer fore the angle CAE is equal to the angle BAE ; and they are in one plane, which is impossible. b Def. 1. 2. Sup. A E Again, from a point above a plane there can be only one perpendicular to that...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1810 - 518 sider
...a right angle. Wherefore the angle CAEis equal to theangle BAE; and they are in one plane, ( vhich is impossible. Also, from a point above a plane, there can be but one perpendicular to I hat plune ; for, if there could be two, they ~ — would be parallelh to one another,...
Uten tilgangsbegrensning - Om denne boken ## The Elements of Euclid; viz. the first six books, together with the eleventh ...

Euclides - 1814
...plane, meets CA; therefore CAE is a right angle. For the same reason liAE is a right angle. Where- • the angle BAE ; and they are in one plane, which is...Also, from a point above a plane, there can be but one perpendicular to that plane: for, if there could be b 6.1i. two, they would be parallel b to one another,...
Uten tilgangsbegrensning - Om denne boken