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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... "
Elements of Geometry and Trigonometry Translated from the French of A.M ... - Page 247
by Charles Davies - 1849 - 359 pages
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Mathematics for Practical Men: Being a Common-place Book of Principles ...

Olinthus Gregory - Mathematics - 1834 - 427 pages
...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...
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Mathematical and Astronomical Tables: For the Use of Students in Mathematics ...

William Galbraith - Astronomy - 1834 - 428 pages
...horizontal plane, and wanting to know the height of a tower on the top of an inaccessible hill, I took the angle of elevation of the top of the hill 40, and...of the tower 51 ; then measuring in a direct line 100 feet farther from the hill, I took in the same vertical plane the angle of elevation of the tower...
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Elements of Surveying: Including a Description of the Instruments and the ...

Charles Davies - Navigation - 1837 - 336 pages
...required the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...tower was 33 45'; required the height of the tower. ^ 83 IJ99 4. Wanting to know the horizon- + tal distance between two inaccessi- $Lru ble objects E...
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Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1837 - 359 pages
...the distance AB. * \ Ans. 592.907 feet. 6. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...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...
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Elements of Surveying: With a Description of the Instruments and the ...

Charles Davies - Surveying - 1839 - 376 pages
...required the distance AB. Ana. 599.967 yards. 3. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...the height of the tower. „ .,„,,.- . " Ans. 83.998 feet. 4. Wanting to know the horizontal distance between two inaccessible objects E and W, the...
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Elements of Surveying: With a Description of the Instruments and the ...

Charles Davies - Surveying - 1839 - 380 pages
...yards = 55 40'; Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...tower was 33 45' ; required the height of the tower. ^ 83 998 feet 4. Wanting to know the horizontal distance between two inaccessible objects E and W,...
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Elements of Surveying, and Navigation, with a Description of the Instruments ...

Charles Davies - Navigation - 1841 - 359 pages
...yards = 5!ia 40'; Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...33 45' ; required the height of the tower. Ans. 83.993 feet. 4. Wanting to know the horizontal distance between two inaccessible objects E and W, the...
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Elements of Surveying, and Navigation: With a Description of the Instruments ...

Charles Davies - Navigation - 1835 - 359 pages
...the distance AB. Ans. 592.967 yards. 3. Being on a horizontal plane, and wanting to ascertain tlIe height of a tower, standing on the top of an inaccessible...tower was 33 45'; required the height of the tower. 83.g9g 4. Wanting to know the horizontal distance between two inaccessible objects E and W, the following...
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Elements of Geometry and Trigonometry

Geometry - 1843 - 404 pages
...required the distance AB. Ans. 592.967 feet. 6. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...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...
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Elements of plane (solid) geometry (Higher geometry) and trigonometry (and ...

Nathan Scholfield - 1845 - 896 pages
...triangle whose sides are 5, 6, and 7. Ex. 17. Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...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...
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