| Charles Davies - Surveying - 1830 - 318 pages
...demonstrated in the last four articles, are sufficient to solve all the cases of Plane Trigonometry. **In every plane triangle, there are six parts, three sides, and three angles.** Of these six parts, at least three must be given, and one of these a side, to enable us to determine... | |
| Adrien Marie Legendre - Geometry - 1836 - 359 pages
...bisecting the vertical angle, and the diameter of the circumscribing circle. PLANE TRIGONOMETRY. IN every **triangle there are six parts : three sides and three...related to each other, that if a certain number of them** be known or given, the remaining ones can be determined. Plane Trigonometry explains the methods of... | |
| Charles Davies - Surveying - 1839 - 376 pages
...circumference, or in the arc : draw AB, BC ; bisect these two lines by the perpendiculars, DE, FG : the point O **where these perpendiculars meet will be the centre...determined. 40. Plane Trigonometry explains the methods of** finding, by calculation, the unknown parts of a triangle when a sufficient number of the six parts... | |
| C. Davies - Surveying - 1839 - 380 pages
...triangle. CHAPTER III. Plane Trigonometry. 39. In every plane triangle there are six parts : three sidea **and three angles. These parts are so related to each...determined. 40. Plane Trigonometry explains the methods of** finding, by calculation, the unknown parts of a triangle when a sufficient number of the six parts... | |
| Charles Davies - Navigation - 1841 - 406 pages
...circumference, or in the arc : draw AB, BC ; bisect these two lines by the perpendiculars, DE, FG : the point O **where these perpendiculars meet will be the centre...determined. 40. Plane Trigonometry explains the methods of** finding, by calculation, the unknown parts of a triangle when a sufficient number of the six parts... | |
| Charles Davies - Navigation - 1846 - 388 pages
...these arcs intersect each other, draw FG, EG; DEGF will be the parallelogram required. PROBLEM XII. **To find the centre of a given circle or arc. 38. Take...determined. 40. Plane Trigonometry explains the methods of** finding, by calculation, the unknown parts of a triangle when a sufficient number of the six parts... | |
| Charles Davies - Trigonometry - 1849 - 384 pages
...circle. PROBLEM xxv. PLANE TRIGONOMETRY. In every triangle there are six parts: three siJcs and thtee **angles. These parts are so related to each other, that if a certain number of them** be known or given, the remaining ones can be determined. Plane Trigonometry explains the methods of... | |
| Adrien Marie Legendre - Geometry - 1852 - 436 pages
...: , this line will make with the given line the required angle. PLANE TRIGONOMETRY. DEFINITIONS. 1. **In every plane triangle there are six parts: three...angles. These parts are so related to each other, that** when one side and any two other parts are given, the remaining ones can be obtained, either by geometrical... | |
| Charles Davies - Navigation - 1852 - 412 pages
...[BOOK I. PLANE TRIGONOMETRY. SECTION III. DEFINITIONS. — APPLICATION TO HEIGHTS AND DISTANCES. 1. **In every plane triangle there are six parts : three...angles. These parts are so related to each other, that** when one side and any two other parts are given, the remaining ones can be obtained, either by geometrical... | |
| Charles Davies - Geometry - 1886 - 334 pages
...DEF1N1T1ONS AND EXPLANAT1ON OF TABLES. 19. In every plane triangle there are six parts: three s1des **and three angles. These parts are so related to each other, that** when one side and any two other parts are given, the remaining parts can be obtained, either by geometrical... | |
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