 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.  Euclid, books i. & ii., with notes, examples, and explanations, by a late ... - Σελίδα 32των Euclides - 1879Πλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Robert Potts - 1865 - 528 σελίδες
...QBD PROPOSITION XIV. THEOREM. lf at a paint in a straight line, two other straight lines, upon tha opposite sides of it, make the adjacent angles together equal to two right angles ; then these two straight lines shall be in one and the same straight line. At the point B in the straight... | |
 | Euclid, Isaac Todhunter - 1867 - 424 σελίδες
...angles. F BC 1C HM And because at the point H in the straight line GH, the two straight lines KH, HM, on the opposite sides of it, make the adjacent angles together equal to two right angles, KH is in the same straight line with HM. [I. 14. And because the straight line HG meets the parallels... | |
 | Euclid, Isaac Todhunter - 1867 - 426 σελίδες
...angles. DF G_ KHM And because at the point H in the straight line GU, the two straight lines KH, HM, on the opposite sides of it, make the adjacent angles together equal to two right angles, KH is in the same straight line with HM. [I. 14. And because the straight line HG meets the parallels... | |
 | Robert Potts - 1868 - 434 σελίδες
...&c. QED PROPOSITION XIV. THEOREM. 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 rig/it angles ; then these two straight lines shall be in one and the same straight line. At the point... | |
 | Euclides - 1870 - 270 σελίδες
...Recap. PROP. 14.— THEOB. If at a point in a st. line, two other lines, upon ike opposite sides oj it, make the adjacent angles together equal to two right angles, these two lines shall be in one and the same Line. CONS. — Pst. 2. A straight line may be produced to any length... | |
 | Euclides - 1871 - 136 σελίδες
...L ABD is the supplement of / ABC. If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles...equal to two right angles, these two straight lines must be in one and the same straight line. At the pt. B in the st. line AB let the st. lines BC, BD,... | |
 | Elias Loomis - 1871 - 302 σελίδες
...THEOREM (Converse of Prop. II.). If, at a point in a straight line, two other straight lines, upon me opposite sides of it, make the adjacent angles together...equal to two right angles, these two straight lines are in one and the tame straight line. then will BD be in the same straight ine with CB. For, if BD... | |
 | Henry William Watson - 1871 - 320 σελίδες
...AEC is equal to the angle BED. PROPOSITION 13. If at a point in a straight line two straight lines on opposite sides of it make the adjacent angles together equal to two right angles, or make the vertically opposite angles equal to one another, these two straight lines shall be in one... | |
 | Euclides, James Hamblin Smith - 1872 - 376 σελίδες
.../ ABC. PROPOSITION XIV. THEOREM. If, at a. point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles...equal to two right angles, these two straight lines must be $n_ one and the same straight line. At the pt. B in the st. line AB let the st. lines BC, BD,... | |
 | Henry Major - 1873 - 588 σελίδες
...equal to two right angles. XlV. — If, at a point in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles...these two straight lines shall be in one and the same straigJit line. At the point B in the straight line A AB, let the two straight lines BC, BD, / upon... | |
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