 | Charles Hutton - Mathematics - 1807
...plane, and wanting to know the height of a tower placed on the top of an inaccessible hill ; I took the angle of elevation of the top of the hill 40°, and...of the top of the tower 51°; then measuring in a line directly from it to the distance of 200 feet farther, I found the angle to the top of the tower... | |
 | Charles Hutton - Mathematics - 1811
...plane, and wanting to know the height of a tower placed on the top of an inaccessible hilj ; I took the angle of elevation of the top of the hill 40°, and...of the top of the tower 51°; then measuring in a line directly from, it to 'the distance of 200 feet farther, I found the angle to the top of the tower... | |
 | Olinthus Gregory - Plane trigonometry - 1816 - 278 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...measuring in a direct line 180 feet farther from the hill, I took in the same vertical plane the angle of elevation of the top of the tower 33° 45'. Required... | |
 | Olinthus Gregory - Plane trigonometry - 1816 - 276 pages
...CBD, by means of the relation between sides and the sines of their opposite angles. , EXAMPLE VII, Being on a horizontal plane, and wanting to ascertain,...tower standing on the top of an inaccessible hill, I took the angle of elevation of the top of the hill 40°, and of the top of the tower 51°, then measuring... | |
 | Charles Hutton - Mathematics - 1818 - 646 pages
...tower placed on the top of an inaccessible hill ; 1 took the angle of elevation of the top of the bill 40°, and of the top of the tower 51° ; then measuring in a line directly from it to the distance of 200 feet farthec, l found the angle to the top of the tower... | |
 | Charles Hutton - Mathematics - 1822 - 618 pages
...plane, and wanting to know the height of a tower placed on the top of an inaccessible hill . ( took the angle of elevation of the top of the hill 40°, and of the top of the tower 61°; then measuring in a line directly from it to the distance of 200 feet farther, I found the angle... | |
 | Charles Hutton - Mathematics - 1825
...the height of a tower placed on the top of an inaccessible bill ; I took the angle of elevation at the top of the hill 40°, and of the top of the tower 51°; then measuring in a line directly from it to the distance of 200 feet farther, 1 found the angle to the top of the towers... | |
 | William Galbraith - Astronomy - 1827 - 448 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... | |
 | Charles Davies - Surveying - 1830 - 392 pages
...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...angle of elevation of the top of the tower was 33' 45'. Required the height of the tower. Ans. 83.9983 feet. Example 4. — Wanting to know the horizontal... | |
 | Charles Hutton - Mathematics - 1831 - 634 pages
...plane, and wanting to know the height of a tower placed on the top of an inaccessible hill ; I took the angle of 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... | |
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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... 
