| Euclid - Geometry - 1890 - 442 pages
...and BXP. But each of these last is a right A . .-. AXY + BXY = twort. As. Proposition 14. THEOREM — **If at a point in a straight line, two other straight lines,** on. the opposite sides of it, make the adjacent angles together equal to tivo right angles, these two... | |
| James Andrew Blaikie, William Thomson - Geometry - 1891 - 154 pages
...hi a straight line two other straight lines on opposite sides of it make adjacent angles which are **together equal to two right angles, these two straight...lines shall be in one and the same straight line.** 15. If two straight lines cut one another, the vertically opposite angles shall be equal. 16. If one... | |
| Rupert Deakin - Euclid's Elements - 1891 - 102 pages
...straight line on one side of it are either two right angles or are together equal to two right angles. 14. **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... | |
| James Blaikie, William Thomson - Geometry - 1891 - 160 pages
...straight lines meet in a point, the angles formed shall be together equal to four right angles. i 14. **If at a point in a straight line two other straight lines** on opposite sides of it make adjacent angles which are together equal to two right angles, these two... | |
| Euclid - Geometry - 1892 - 460 pages
...supplementary. PROPOSITION 14. THEOREM. If, at a point in a straight line, two otlier straight lines, on **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 Kv,e. At the point B in the straight... | |
| Euclid, John Bascombe Lock - Euclid's Elements - 1892 - 184 pages
...equal. 7. With the construction of Question 6 shew that FA bisects the angle BAC. Proposition 14. 91. **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... | |
| Henry Martyn Taylor - 1893 - 486 pages
...produced to G and the angle IiAG bisected, the two bisecting lines are at right angles. PROPOSITION 14. **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 rigM angles, these two straight... | |
| Elias Loomis - Geometry - 1895 - 450 pages
...n consequence 3f the supposition. Prop. 3 might be enunciated thus : Hypothesis, if, at a point na **straight line, two other straight lines upon the opposite sides of it make the** idjacent angles together equal to two right angles, then, Conclusion, these two straight lines are... | |
| Henry Martyn Taylor - Euclid's Elements - 1895 - 708 pages
...produced to G and the angle BAG bisected, the two bisecting lines are at right angles. PROPOSITION 14. **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... | |
| Queensland. Department of Public Instruction - Education - 1897 - 456 pages
...produced in order, all the exterior angles so formed are together equal to four right angles. 18 4. **If at a point in a straight line, two other straight lines,** on opposite sides of it, make tlie adjacent angles togethercqii.il to two right nn^lis, then these... | |
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