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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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A Course of Mathematics in Two Volumes for the Use of Academies as Well as ...

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...
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A Course of Mathematics: In Three Volumes : Composed for the Use of the ...

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...
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Elements of Plane and Spherical Trigonometry: With Their Applications to ...

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...
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Elements of Plane and Spherical Trigonometry: With Their Applications to ...

Olinthus Gregory - Plane trigonometry - 1816 - 276 pages
...of their opposite angles. , EXAMPLE VII, Being on a horizontal plane, and 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 of the top of the tower 51, then measuring...
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A Course of Mathematics: For the Use of Academies, as Well as Private Tuition

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...
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A Course of Mathematics: For the Use of Academies, as Well as Private ...

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...
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A Course of Mathematics for the Use of Academies: As Well as ..., Volume 1

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...
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Mathematical and Astronomical Tables: For the Use of Students of Mathematics ...

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...
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Elements of Surveying: With the Necessary Tables

Charles Davies - Surveying - 1830 - 300 pages
...the distance AB. Ans. 593.8. Example 3. — Being on a horizontal plane, and wanting to ascertain the height of a tower, standing on the top of an inaccessible...Required the height of the tower. Ans. 83.9983 feet. Example 4. — Wanting to know the horizontal distance bet-ween two inaccessible objects E and W, I...
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A Course of Mathematics: For the Use of Academies, as Well as Private ...

Charles Hutton - Mathematics - 1831
...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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