 | Lefébure de Fourcy (M., Louis Etienne) - 1868 - 350 páginas
...height of a balloon, when its angles of elevation as taken by two observers, at the same time, both on the same side of it, and in the same vertical plane, were 35о and 64о, their distance apart being 880 yards? Ans. 935.757 yards. 3. Wanting to know the distance... | |
 | Edward Olney - 1885 - 222 páginas
...of elevation were 35° and 04°, as taken by two observers on the same level, at the same time, both on the same side of it, and in the same vertical plane ; the distance between the two observers being 880 yards ? Ans-, 935-757 yards13 Given two sides of... | |
 | Edward Olney - 1872 - 472 páginas
...of elevation were 35° and 64°, as taken by two observers on the same level, at the same time, both on the same side of it, and in the same vertical plane; the distance between the two observers being 880 yards ? Ans., 935.757 yards. 13. Given two sides of... | |
 | Edward Olney - 1872 - 562 páginas
...of elevation were 35° and 64°, as taken by two observers on the same level, at the same time, both on the same side of it, and in the same vertical plane; tho distance between the two observers being 880 yards ? Ans., 935.757 yards. 13. Given two sides of... | |
 | Edward Olney - 1877 - 220 páginas
...of elevation were 35° and 64°, as taken by two observers on the same level, at the same time, both on the same side of it, and in the same vertical plane ; the distance between the two observers being 880 yards ? Ans., 935.757 yards. 13. Given two sides... | |
| |
AB 2.29884 so is sin ABC = 46° 9,85693 to the height AC= 143,14 2,15577 50. It is required to find the perpendicular height of a cloud or other object, when its angles of elevation, as taken by two observers at the same time, on the same side of it,... 
