 | Geometry - 1843 - 376 pages
...=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 - Conic sections - 1845 - 542 pages
...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 - Geometry - 1845 - 506 pages
...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... | |
 | Nathan Scholfield - 1845 - 894 pages
...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... | |
 | Charles Davies - Navigation - 1846 - 386 pages
...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 pages
...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... | |
 | Charles Davies - Trigonometry - 1849 - 372 pages
...required the distance AB. Ans. 592.967 feet. 6. Being on a horizontal plane, and wanting to ascertain >he height of a tower, standing on the top of an inaccessible...angle of elevation of the top of the tower was 33° 45': required the height of the tower. Ans. 83.9983 feet. 7. Wanting to know the horizontal distance... | |
 | Adrien Marie Legendre - Geometry - 1852 - 436 pages
...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 - Navigation - 1854 - 446 pages
...it was found that, OB = 672 yards, CA =588 yards, required the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain...angle of elevation of the top of the tower was 33° 45' ; required the height of the tower. Ans. 83.998. 4. "Wanting to know the horizontal distance between... | |
 | Charles Davies - Geometry - 1854 - 436 pages
...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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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... 
