 | John Playfair - 1855 - 350 sider
...makes with another upon one side of if, «• either two right angles, or are together equal to tiro right angles. Let the straight line AB make with CD, upon one side of it the angle* CBA, ABD ; these are eithertwo right angles, or are together equal to two right angles. . ,... | |
 | Euclid, Isaac Todhunter - 1867 - 426 sider
...THEOREM. The angles which one straight line makes with another straight line on one side of it, either are two right angles, or are together equal to two right angles. Let the straight line AB make with the straight line CD, on one side of it, the angles CBA, ABD : these either are two right angles, or... | |
 | Euclid, Isaac Todhunter - 1867 - 424 sider
...THEOREM. The angles which one straight line makes with another straight line on one side of it, either are two right angles, or are together equal to two right angles. Let the straight line AB make with the straight line CD, on one side of it, the angles CBA, ABD : these either are two right angles, or... | |
 | Robert Potts - 1868 - 434 sider
...line -AB. QEF PROPOSITION XIII. THEOREM. The angles which one straight line makes with another upon one side of it, are either two right angles, or are...with CD, upon one side of it, the angles CBA, ABD. Then these shall be either two right angles, or, shall be together, equal to two right angles. E A... | |
 | 1868 - 876 sider
...other side of this base shall be equal 30 2. The angles which one straight line makes with another upon one side of it are either two right angles or are together equal to two right angels 20 3. Any two sides of a triangle are together greater than the third side 20 4. In obtuse-angled... | |
 | Elias Loomis - 1871 - 302 sider
...straight line makes w:tk anothei,upi* one side of it, are either two right angles, cr are together to two right angles. Let the straight line AB make with CD, upon one side of it, the angles ABC, ABD ; these are either two right angles, or are toTethiir equal to two right angles. ^or if the... | |
 | Alfred Challice Johnson - 1871 - 178 sider
...equal, and vice versa. (Eue. L, 5, б.) 2. The angles which one straight line makes with another upon one side of it, are either two right angles, or are together equal to two right angles, or 180°. (Eue. I., 13.) 3. If two straight l1nes cut one another, the vertical or opposite angles... | |
 | Henry Major - 1873 - 588 sider
...right angles. Let the straight line AB make with CD, upon one jlide of it, the angles CBA, ABD : these are either two right angles or are together equal to two right angles. For if the angle CBA be equal to ABD, each of them is a right angle ; but, if not, from the point B... | |
 | Edward Atkins - 1874 - 426 sider
...line AB. QEF Proposition 13. — Theorem. The angles which one straight line makes with another upon one side of it, are either two right angles, or are...CD, upon one side of it, the angles CBA, ABD. These angles shall either be two right angles, or shall together be equal to two right angles. PROOF. —... | |
 | Edward Atkins - 1874 - 428 sider
...AB. QEF Proposition 13.— Theorem. The angles which one straight line makes with another upon (me side of it, are either two right angles, or are together...CD, upon one side of it, the angles CBA, ABD. These angles shall either be two right angles, or shall together be equal to two right angles. PROOF. —... | |
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The angles which one straight line makes with another upon one tide of it, are either two right angles, or are together equal to two right angles. Let the straight line AB make with CD, upon one side of it the angles CBA, ABD ; these are either two right... 
