| Robert Simson - Trigonometry - 1762 - 488 pages
...therefore if two ftraight lines, &c. Q^ED CoR. T. From this it is manifeft that if two ftraight lines cnt **one another, the angles they make at the point where...they cut, are together equal to four right angles.** CoR. 2. And confequently that all the angles made by any number of lines meeting in one point, are... | |
| Euclid - 1781 - 552 pages
...Therefore, if two Itraight lines, &c. QED CoR. r. From this it is manifeft, that, if two ftraight lines cut **one another, the angles they make at the point where they cut,** arc together equal to four right angles. CoR. 2. And confequently that all the angles made by any number... | |
| Alexander Ingram - Trigonometry - 1799 - 374 pages
...two ftraight lines, See. Q.. ED CoR. i. From this it is manifeft, that, if two- ftraight lines cut **one another, the angles they make at the point where...they cut, are together equal to four right angles.** CoR. 2. And confequrntly, that all the angles made by any number of lines meeting in one point, are... | |
| Robert Simson - Trigonometry - 1804 - 530 pages
...two ftraight lines, &c. Q^ ED CoR. i. From this it is manifeft that if two ftraight lines cut •ne **another, the angles they make at the point where they cut, are together equal to four right angles.** CoR. 2. Ağd confequentiy that all the angles made by any number of lines meeting in one point, are... | |
| Euclides - 1816 - 588 pages
...Therefore} if two -straight lines, &c. QED COR. 1. From this it is manifest, that, if two straight lines cut **one another, the angles they make at the point where...they cut, are together equal to four right angles.** COR; 2. And consequently that all the angles made by any number of lines meeting m one point, are together... | |
| Daniel Cresswell - Geometry - 1816 - 352 pages
...(44.) COR. 3. Hence, if two arches of circles cut one another, in a sphere's surface, the angles which **they make, at the point where they cut, are, together, equal to four right angles** (Art. 42.) PROP. I. (45.) Theorem. All the straight lines which touch any number of great circles,... | |
| Peter Nicholson - Mathematics - 1825 - 1046 pages
...if two straight lines, &c. QED Сок. 1. From this it is manifest that, if two straight lines cut **one another, the angles they make at the point where...they cut, are together equal to four right angles.** Сок. 2. And consequently that all the angles made by any number of lines meeting in one point, are... | |
| Robert Simson - Trigonometry - 1827 - 546 pages
...QED COB. 1. From this it is manifest, that, if two straight lines cut one another, the angles which **they make at the point where they cut, are together equal to four right angles.** COR. 2. And consequently that all the angles made by any number of lines meeting in one point, are... | |
| Euclides - 1834 - 518 pages
...QED COR. 1. From this it is manifest, that if two straight lines cut one another, the angles which **they make at the point where they cut, are together equal to four right angles.** COu. 2. And consequently, that all the angles made by any number of lines meeting in one point, are... | |
| Euclid - 1835 - 540 pages
...QED COR. 1. From this it is manifest, that if two straight lines cut one another, the angles which **they make at the point where they cut, are together equal to four right angles.** COR. 2. And consequently that all the angles made by any number of straight lines meeting in one point,... | |
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