 | W. Davis Haskoll - 1858 - 422 sider
...use in surveying : — 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... | |
 | Elias Loomis - 1858 - 256 sider
...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 angle ABC is equal to ABD, each of them is a right angle (Def. 10) ; but c K D if not, suppose... | |
 | Sandhurst roy. military coll - 1859 - 672 sider
...Euclid. 1. Define a right angley and 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. 2. Describe a parallelogram equal to a given rectilineal figure, and having an angle equal to a given... | |
 | Robert Potts - 1860 - 380 sider
...straight line AB. QEF PROPOSITION XIH. 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. £ A... | |
 | Euclides - 1860 - 288 sider
...required to be done. PROPOSITION XIII. THEOREM. 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. '.- Given the straight line AB making with CD, upon one side of it, the angles CBA and ABD ; to prove... | |
 | Royal college of surgeons of England - 1860 - 332 sider
...acute-angled triangle, parallelogram, rectangle. 2. 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. Having proved this proposition, state (without proving) its converse. If the two portions ABO, DBC... | |
 | Elias Loomis - 1861 - 244 sider
...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 sider
...introduced with 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... | |
 | Euclides - 1862 - 172 sider
...the point CQEF PROP. XIII. — THEOREM. 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. (References— Prop. i. 11; ax. 1, 2; def. 10.) Let the straight line AB make with CD, upon one side... | |
 | S. M. Saxby - 1862 - 200 sider
...introduced with 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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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... 
