| 1801 - 426 sider
...horizontal plane, and wanting to know the height of an object on the top of an inaccessible hill j **I took the angle of elevation of the top of the hill** equal 40", and of the top of the object equal 51° ; then, going in a direct line from it to the distance... | |
| John Bonnycastle - 1806 - 419 sider
...Being at the station A, on an horizontal plane, and wanting to know the height of a tower c D, placed **on the top of an inaccessible hill, I took the angle of elevation** DAE, of the top of the hill, equal to 4O°, and of the top of the tower c AE equal to 51° ; then,... | |
| Samuel Webber - 1808
...inaccessible elevation. EXAMPLE. Being upon a horizontal plane, and wanting to know the height of an object **on the top of an inaccessible hill ; I took the angle of elevation of the top of the hill** equal 4O°, and of the top of the object equal 51° ; then, going in a direct line from it to the distance... | |
| Charles Davies - 1830 - 300 sider
...CB=672, and also, the contained angle ACB=55° 40'. Required the distance AB. Ans. 593.8. Example 3. — **Being on a horizontal plane, and wanting to ascertain...tower, standing on the top of an inaccessible hill,** there were measured the angle of elevation of the top of the hill 40°, and of the top of the tower... | |
| Charles Hutton - 1831
...distance 192-15 Exam. xiv. Reing on a horizontal plane, and wanting to know the height of a tower placed **on the top of an inaccessible hill ; I took the angle...elevation of the top of the hill 40", and of the top of** ib.3 tower 51° ; the measuring in a line direcily from it to the distance of 200 feet farther, I found... | |
| Olinthus Gregory - 1834 - 427 sider
...с в D, by means of the relation between sides and the sines of their opposite angles. EXAMPLE VI. **Being on a horizontal plane, and wanting to ascertain...tower standing on the top of an inaccessible hill, I** :ook the angle of elevation of the top of the hill 40°, and of the top of the tower 51°, then measuring... | |
| William Galbraith - 1834 - 428 sider
...the tower ? Ans — 46.666 feet. EXAMPLE XIV. In order to know the height of a castle standing on a **hill, I took the angle of elevation of the top of the** castle above the horizontal plane 58°, and of the top of the hill 33° ; but could not, as in last... | |
| Adrien Marie Legendre - 1836 - 359 sider
...=672 feet, and also the contained angle ACB=55° 40': required the distance AB. Ans. 592.967 feet. 6. **Being on a horizontal plane, and wanting to ascertain...tower, standing on the top of an inaccessible hill,** there were measured, the angle of elevation of the top of the hill 40°, and of the top of the tower... | |
| 1837 - 249 sider
...ACE: it was found that = 6l-2 yards C^3=588 yaida required the distance AB. Ans. 592.967 yards. 3. **Being on a horizontal plane, and wanting to ascertain...tower, standing on the top of an inaccessible hill,** there were measured, the angle of elevation of the top of the hill 40°, and of the top of the tower... | |
| Charles Davies - 1839 - 261 sider
...HEIGHTS AND DISTANCES. CZ? = 672 yards CA—588 yards required the distance AB. Ana. 599.967 yards. 3. **Being on a horizontal plane, and wanting to ascertain...tower, standing on the top of an inaccessible hill,** there were measured, the angle of elevation of the top of the hill 40°, and of the top of the tower... | |
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