 Wherefore, when a 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 together equal to two right angles, these two straight lines shall be in one...  Elements of Geometry and Conic Sections - Page 15by Elias Loomis - 1857 - 226 pagesFull view - About this book
 | Euclides - 1878 - 398 pages
...SUPPLEMENT of the other. Thus, in both figures, / ABD is the supplement of L ABC. PROPOSITION XIV. THEOREM. If, at a point in a straight line, two other straight...the opposite sides of it, make the adjacent angles togetlwr equal to two right angles, these two straight lines must be in one and the same straight line.... | |
 | James Maurice Wilson - 1878 - 450 pages
...two right angles. QED THEOREM 3. If the adjacent angles made by one straight line with two others are together equal to two right angles, these two straight lines are in one straight line*. Part. En. Let the adjacent angles DBA, DBC made by BD with the two straight lines BA,... | |
 | Moffatt and Paige - 1879 - 428 pages
...two right angles. Therefore, the angles which one straight line, etc. QED Proposition XIV. Theorem. If, at a point in a straight line, two other straight...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... | |
 | Euclides - 1879 - 146 pages
...right angle. PROPOSITION XIV. THEOREM. If at a feint in a straight line, two other straight lines, on the opposite sides of it, make the adjacent angles...equal to two right angles ; these two straight lines shall be in one and the same straight line. At the pt. B in the st. line AB, let the two st. lines... | |
 | W J. Dickinson - Geometry - 1879 - 44 pages
...of the bisections of the interior and exterior angles at the base are in the same straight line. 14. If at a point in a straight line two other straight lines, upon the opposite side of it, make the adjacent angles together equal to two right angles ; then these two straight lines... | |
 | Euclides, James Hamblin Smith - 1879 - 376 pages
...COMPLEMENT of the other. Thus, in fig. 2, L ABD is the complement of / ABE. PROPOSITION XIV. THEOREM. If, at a point in a straight line, two other straight lines, upon tht opposite sides of it, make the adjacent angles together equal to two right angles, these two straight... | |
 | Joseph Wollman - 1879 - 120 pages
...point draw a straight line which shall make equal angles with two straight lines given in position. 31. If at a point in a straight line two other straight lines on opposite sides of it make the adjacent angles together equal to two right angles, these two straight... | |
 | Bombay city, univ - 1880 - 750 pages
...quadrilateral form a parallelogram. 2. If, at a point in a straight linn, two other straight 10 lines on the opposite sides of it make the adjacent angles...equal to two right angles, these two straight lines shall be in one and the same straight line. ABCD is a parallelogram whose diagonals meet in O. Show... | |
 | Pupil teachers - 1880 - 1486 pages
...of the bisections of the interior and exterior angles at the base are in the same straight line. 14. If at a point in a straight line two other straight lines, upon the opposite side of it, make the adjacent angles together equal to two right angles; then these two straight lines... | |
 | Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...T> F BC K. H 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... | |
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