| 1876
...First Book. 2. Show that 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.** 3. Prove that if one side of a triangle be produced, the exterior angle is greater than either of the... | |
| Henry Major - 1876
...as — , + , X .] 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. If from the ends of a side of a triangle, there be drawn two straight lines to a point within the... | |
| Edward Atkins - 1877
...Proposition 13. — Theorem. Tfte angles which one straight line makes with another upon one side of it, are **either two right angles, or are together equal to...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. —... | |
| Great Britain. Education Department. Department of Science and Art - 1877
...the two angles which one right line makes with another (on the same side of either right line) are **either two right angles, or are together equal to two right angles.** (8.) 9. Prove that the complements of the parallelograms, which are about the diameter of any parallelogram,... | |
| Elias Loomis - 1877 - 443 sider
...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 angle ABC is equal to ABD, each of CBD them is a right angle (Def. 19) ; but if these... | |
| Euclides - 1877
...XIII. THEOREM. The angles which one straight line makes with another upon one side of it are eitlter **two right angles or are together equal to two right angles. Let** AB make with CD upon one side of it the angles ABC, ABD ; then shall these be eithei' two right angles,... | |
| Scotland free church
...JAMES MATTHEW, BD 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. To make a triangle, of which the sides shall be equal to three given straight lines ; but any two... | |
| Euclides - 1879
...PROPOSITION XIII. THEOREM. The angles which one straight line makes with another on one side of it, are **either two right angles, or are together equal to two right angles. Let the** st. line AB make with CD, on one side of it, the L s CBA, ABD. Then these are either two rt. Zs, or... | |
| Moffatt and Paige - 1879
...straight line AB make with CD, upon one side of it, the angles CB A, AB D. Then these two angles are **either two right angles or are together equal to two right angles.** DBCOBO For, if the angle CBA be equal to the angle ABD, then each of them is a right angle (Def. 10).... | |
| W J. Dickinson - 1879 - 36 sider
...triangle is isosceles. 13. 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.** Same proposition. If the angles are CBA, ABD, and BE bisects ABC, and BF bisects ABD, then FEE is a... | |
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