| Elias Loomis - 1858 - 256 σελίδες
...straight line makes w^'tk another, upj^ one side of it, are either two right angles, cr are together eqvj( 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 together equal to two right angles. For if the... | |
| War office - 1858 - 578 σελίδες
...(2) 901. •• Euclid. 1. 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. 2. The straight lines which join the extremities of two equal and parallel straight lines towards the... | |
| W. Davis Haskoll - 1858 - 422 σελίδες
...: — The 13th, Book I. 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. The 14th, Book I. If at a point in a straight line, two other straight lines, upon the opposite sides... | |
| Sandhurst roy. military coll - 1859 - 672 σελίδες
...to another straight line ? 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. 2. The opposite sides and angles of parallelograms are equal to one another, and the diameter bisects... | |
| Robert Potts - 1860 - 380 σελίδες
...straight line makes with another upon one side 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. Then these shall be either two right angles, or, shall be together, equal to two right angles. £ A... | |
| Popular educator - 1860 - 536 σελίδες
...make with D c, upon one side of it, the two angles c BA Fig. 13. and AB D. These angles are ei-.her two right angles, or are together equal to two right angles. For, if the angle CBA, be equal to the D angle ADD, then each of them is a light angle, by Def. 10. But, if the angle cn A be not equal... | |
| Euclides - 1860 - 288 σελίδες
...Given the straight line AB making with CD, upon one side of it, the angles CBA and ABD ; to prove that these are either two right angles, or are together equal to two right angles. (Dem.) For, if the angle CBA be equal to ABD, each of them is a right angle (Def. 11); but, if not,... | |
| Royal college of surgeons of England - 1860 - 336 σελίδες
...trapezium, a rectangle. 3. 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. 4. If from the ends of a side of a triangle, there be drawn two straight lines to a point within the... | |
| Elias Loomis - 1861 - 244 σελίδες
...straight line makes w^th another,upon one side of it, are either two right angles, or are together io 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 together equal to two right angles. A B *f not,... | |
| S. M. Saxby - 1861 - 136 σελίδες
...advantage. Book I. XIII. — The angles which one right line makes with another upon one side of it, are either two right angles, or are together equal to two right angles. Departing from the precise language of absolute and complete proof (for obvious reasons), we may say... | |
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