 | 1836 - 488 páginas
...equal angles. XI. From the same point in a plane, there cannot be two straight lines at right angles to the plane, upon the same side of it : and there can be but one perpendicular to a plane from a point above it. XII. Planes to which the same straight line... | |
 | Euclid, James Thomson - 1837 - 410 páginas
...angles to the given plane, the other AD is also (XI. 8.) at right angles to it. PROP. XIII. THEOR. FROM the same point in a given plane, there cannot be two straight lines drawn perpendicular to the plane, upon the same side of it : and there can be but one perpendicular... | |
 | A. Bell - 1837 - 180 páginas
...AF, it will be perpendicular to the same plane to which AF is perpendicular. PROPOSITION XI. THEOREM. From the same point in a given plane, there cannot be two straight lines at right angles to the plane, upon the same side of it ; and there can be but one perpendicular to... | |
 | Euclides - 1841 - 378 páginas
...at right angles to a given plane from a point given in it. Which was to be done. PROP. XIII. THEOR. From the same point in a given plane, there cannot be two straight lines at right angles to the plane, upon the same side of it: and there can be but one perpendicular to a... | |
 | Euclides - 1842 - 316 páginas
...AF it will be perpendicular to the same plane to which AF is perpendicular (7. PL). PROP. XI. THEOR. FROM the same point in a given plane, there cannot be two straight lines at right angles to the plane upon the same side of it : and there can be but one perpendicular to a... | |
 | John Playfair - 1842 - 332 páginas
...PROP. XI. THEOR. From the same point in a plane, there cannot be two straight lines at right angles to the plane, upon the same side of it ; And there can be but one perpendicular to a plane from a point above it. For if it be possible, let the two straight... | |
 | Euclid - 1845 - 218 páginas
...angles to a given plane, from a point given in it. Which was to be done. PROPOSITION XIII. THEOR. — From the same point in a given plane, there cannot be two straight lines at right angles to the plane, upon the same side of it : and there can be but one perpendicular to... | |
 | Euclid, James Thomson - 1845 - 382 páginas
...angles to the given plane, the other AD is also (XI. 8) at r: if ht angles to it. PROP. XIII. THEOR. — From the same point in a given plane, there cannot be two straight lines drawn perpendicular to the plane, upon the same side of it : and there can be but one perpendicular... | |
 | Euclides - 1845 - 546 páginas
...erected at right angles to a given plane, from a point given in it. QKF PROPOSITION XIII. THEOREM. From the same point in a given plane, there cannot be two straight lines at right angles to the plane, upon the same side of it : and there can be but one perpendicular to... | |
 | Dennis M'Curdy - 1846 - 168 páginas
...8 of this. 11 Th. From the same point in a plane there cannot be two straight lines at right angles to the plane, upon the same side of it. And there can be but one perpendicular to a plane from a point above it. Recite p. 3, 6 of this. 12 Th. Planes to which... | |
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From the same point in a given plane there cannot be two straight lines at right angles to the plane, upon the same side of it : and there can be but one perpendicular to a plane from a point above the plane. 
