 | Robert Potts - 1876 - 446 sider
...PROPOSITION XIIR THEOREM. 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 AS make with CD, upon one side of it, the angles CBA, ABD. Then these shall be either two right angles,... | |
 | 1876 - 710 sider
...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 - 784 sider
...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 - 72 sider
...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 - 562 sider
...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 - 458 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 - 58 sider
...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 - 134 sider
...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 - 146 sider
...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 - 428 sider
...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).... | |
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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. Let the straight line AB make with CD, upon one side of it, the angles CBA, ABD : these shall either be... 
