 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 ... - Page 32by Euclides - 1879Full view - About this book
 | John Playfair - Circle-squaring - 1819 - 350 pages
...line, &c. Q, ED PROP. XIV. THEOR. If, at a point in a straight line, t-sco other straight lines, upon the opposite sides of it, make the adjacent, angles...equal to two right angles, these two straight lines are in one and the same straight line. At the point B in the straight line AB, let the two straight... | |
 | John Mason Good - 1819 - 800 pages
...Prop. XIV. Theor. If, at a point in a straight bit, two other straight lines, upon the opposite ¿act of it, make the adjacent angles together equal to two right angles, these two straight linei ¿all be in one and ihe .same straight line. I'rop. XV. Theor. If two straight lines cut one... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...&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,...shall be in one and the same straight line. At the point В in the straight line AB, let the two straight lines BC, BD upon the opposite sides of AB,... | |
 | Robert Simson - Trigonometry - 1827 - 546 pages
...line, &c. QED PROP. XIV. THEOR. If , at a point, in a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles...shall be in one and the same straight line. At the point B in the straight line AB, let the two straight lines BC, BD upon the opposite sides of AB, make... | |
 | Pierce Morton - Geometry - 1830 - 584 pages
...conversely, if the adjacent angles, which one straight line makes with two others at the same point, be together equal to two right angles, these two straight...lines shall be in one and the same straight line. Let the straight line AB make with CD upon one side of it, the adjacent angles А В С, ABD : these... | |
 | Thomas Perronet Thompson - Euclid's Elements - 1833 - 168 pages
...angles, and those on both sides will be equal to four. PROPOSITION XIII. THEOBEM. — If, at a point in a straight line, two other straight lines, on the...adjacent angles together equal to two right angles; those two other straight lines shall be in one and the same straight line. At the point B in the straight... | |
 | John Playfair - Euclid's Elements - 1833 - 346 pages
...PROP. XIV. THEOR. If, at a point in a straight line, two other straight lines, upon the oppo. site sides of it, make the adjacent angles together equal to two right angles, these two straight lines are in one and the same straight line. At the point B in the straight line AB, let the two straight... | |
 | Euclides - 1834 - 518 pages
...QED ' PROPOSITION XIV. THBOR. — If, at a point in a straight line, two oiher straight lines, upon the opposite sides of it, make the adjacent angles together equal to two right angles, these Iwo straight lines shall be in one and the same straight line. At the point B, in the straight line... | |
 | Euclid - 1835 - 540 pages
...straight line," &c. QED PROP. XIV. THEOR. If, at a point in a straight line, two other straight lines upon the opposite sides of it, make the adjacent angles,...shall be in one and the same straight line. At the point B in the straight line AB, let the two straight lines BC, BD upon the opposite sides of AB, make... | |
 | Mathematics - 1835 - 684 pages
...same straight line . . . ax. 4 (J>) If at a point in a straight line two other straight lines upon opposite sides of it make the adjacent angles together equal to two right angles, these two straight unes shall be in one and the same straight line 5 (c) A straight line is the shortest distance between... | |
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