 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.  A Text-book of Geometrical Deductions - Page 136by James Andrew Blaikie, William Thomson - 1891Full view - About this book
 | John Playfair - Mathematics - 1806 - 320 pages
...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. At the point B, in the straight line AB, let the two straight lines BC, BD, upon the opposite sides... | |
 | Robert Simson - Trigonometry - 1806 - 546 pages
...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. At the point B, in the straight line AB, let the two straight lines BC, BD, upon the opposite sides... | |
 | Euclides - 1814 - 560 pages
...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 samestraight line. At the point B in the straight line AB, let the two straight lines BC, BD upon the... | |
 | Euclides - 1816 - 588 pages
...a straight line, two other straight lines, upon the opposite sides of it, make the adjacent angles together equal to tw*o right angles, these two straight...lines 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... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...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. At the point В in the straight line AB, let the two straight lines BC, BD upon the opposite sides... | |
 | Robert Simson - Trigonometry - 1827 - 546 pages
...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. At the point B in the straight line AB, let the two straight lines BC, BD upon the opposite sides of... | |
 | 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... | |
 | Euclid - 1835 - 540 pages
...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. At the point B in the straight line AB, let the two straight lines BC, BD upon the opposite sides of... | |
 | Mathematics - 1835 - 684 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 B, А В make with CD ! /*• upon one side of it, / the adjacent angles i/ ABC,... | |
 | John Playfair - Geometry - 1836 - 148 pages
...point in a straight line, two other straight lines on the opposite sides of it make the adjacent angles together equal to two right angles, these two straight lines shall be in the same straight line. At the point B in the straight line BD, let the straight, lines AB, BC make... | |
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