 Being on a horizontal plane, and wanting to ascertain the height of a 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 51° ; then measuring in a direct...  Elements of Surveying - Página 55por Charles Davies - 1830 - 300 páginasVista completa - Acerca de este libro
 | Olinthus Gregory - 1834 - 472 páginas
...wanting to ascertain the height of a 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 tower 51°, then measuring in a direct line ISO feet farther from the hill, I took in the same vertical plane the angle of elevation of the top... | |
 | Adrien Marie Legendre - 1837 - 376 páginas
...feet, and also the contained angle ACB=55° 40': requi\ red the distance AB. * \ Ans. 592.907 feet. 6. Being on a horizontal plane, and wanting to ascertain...there were measured, the angle of elevation of the top oi the hill 40D, and of the top of the tower 51° : then measuring in a direct line 180 feet farther... | |
 | 1843 - 376 páginas
...=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...elevation of the top of the hill 40°, and of the top of die tower 51° : then measuring in a direct line 180 feet farther from the hill, the angle of elevation... | |
 | Nathan Scholfield - 1845 - 542 páginas
...them and formulas p, Chap. Ill, find the angles of a triangle whose sides are 5, 6, and 7. Ex. 17. Being on a horizontal plane, and wanting to ascertain...angle of elevation of the top of the hill 40°, and the top of the tower 51°: then measuring in a direct line 180 feet farther from the hill, the angle... | |
 | Nathan Scholfield - 1845 - 894 páginas
...them and formulas J3, Chap. Ill, find the angles of a triangle whose sides are 5, 6, and 7. Ex. 17. Being on a horizontal plane, and wanting to ascertain...angle of elevation of the top of the hill 40°, and the top of the tower 51°: then measuring in a direct line 180 feet farther from the hill, the angle... | |
 | Nathan Scholfield - 1845 - 506 páginas
...them and formulae $, Chap. Ill, find the angles of a triangle whose sides are 5, 6, and 7. Ex. 17. Being on a horizontal plane, and wanting to ascertain...angle of elevation of the top of the hill 40°, and the top of the tower 51°: then measuring in a direct line 180 feet farther from the hill, the angle... | |
 | Charles Davies - 1846 - 386 páginas
...DISTANCES. :672 yards C.#=588 yards •aCB — 5Zia 40 ; required the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain...measured, the angle of elevation of the top of the hill 40e, and of the top of the tower 51e; then measuring in a direct line 180 feet farther from the hill,... | |
 | Olinthus Gilbert Gregory - 1848 - 572 páginas
...wanting to ascertain the height of a tower standing on the top of an inaccessible hill, I took the angle of elevation of the top of the hill 40°, and...top of the tower 51°, then measuring in a direct Jine 180 feet farther from the hill, I took in the same vertical plane the angle of elevation of the... | |
 | Adrien Marie Legendre - 1852 - 436 páginas
...that, CB = 672 yards, CA = 588 yards, A OB = 55° 40'; required the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain...hill, the angle of elevation of the top of the tower was1 33° 45' ; required the height of the tower. Ans. 83.£ 4. Wanting to know the horizontal distance... | |
 | Charles Davies - 1854 - 436 páginas
...ACB: it was found that, CB = 672 yards, CA = 588 yards, required the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain...hill, the angle of elevation of the top of the tower Cway 33° 45' ; required the height of the tower. Ans. 83.998. 4. Wanting to know the horizontal distance... | |
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