 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 Plane and Spherical Trigonometry - Page 69by Olinthus Gregory - 1816 - 244 pagesFull view - About this book
 | Adrien Marie Legendre - Geometry - 1874 - 500 pages
...feet and 672 feet, and their included angle 55° 40'. Requir« ed the distance AB. Ans. 592.967 ft. 5. Being on a horizontal plane, and wanting to ascertain...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... | |
 | Charles Davies - Surveying - 1883 - 578 pages
...CB = 672 yards, CA = 588 yards, = 55° 40' ; Ans. 592.967 yards. FIo. required the distance AB. 3. Being on a horizontal plane, and wanting to ascertain...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... | |
 | Charles Davies - Surveying - 1883 - 614 pages
...CA = 672 yards, = 588 yards, = 55° 40'; required the distance AB. Ans. 592.967 yards. 3. Being ou a horizontal plane, and wanting to ascertain the height...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... | |
 | Charles Davies, Adrien Marie Legendre - Geometry - 1885 - 538 pages
...feet and 672 feet, and their included angle 55° 40'. Required- the distance AB. Ans. 592.967 ft. 5. Being on a horizontal plane, and wanting to ascertain...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... | |
 | Great Britain. Parliament. House of Commons - Great Britain - 1863 - 616 pages
...triangles. When may the ambiguity be removed ? 12. Wishing to know the height of a tower on the top of a hill, I took the angle of elevation of the top of the tower 51°, and of its bottom 40° ; then measuring on a horizontal plane in a line directly from my... | |
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