| James Hann - Plane trigonometry - 1854 - 136 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 the tower 51°; then measuring in a** line directly from it to the distance of 200 feet farther, I found the angle at the top of the tower... | |
| Adrien Marie Legendre - Geometry - 1857 - 444 pages
...it was found that, CB = 672 yards, CA -=588 yards, required the distance AB. Ans. 592.967 y:u\k 8. **Being on a horizontal plane, and wanting to ascertain...hill, the angle of elevation of the top of the tower** waf 33° 45' ; required the height of the tower. Ana. 83.998. 4. Wanting to know the hori• jsontal... | |
| Olinthus Gregory - 1863 - 482 pages
...triangle c BD, by means of the relation between sides and the sines of their opposite angles. EXAMPLE VI. **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 Davies - Navigation - 1866 - 422 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...top of the hill 40°, and of the top of the tower** 5Г ; then measuring in a direct line 180 feet farther from the hill, the angle of elevation of the... | |
| C. Davies - 1867 - 342 pages
...and also the included angle A CB : it was found that CB — 072 yards CA = 588 yards ACE = 55° 40'; **required the distance ABAns 592-967 yards3 Being on...angle of elevation of the top of the tower was 33°** 45' ; required tha height of the towerTRIGONOMETRYApplications 4 Wanting to know the horizontal distance... | |
| Charles Davies, Adrien Marie Legendre - Geometry - 1869 - 472 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...• the height of a tower, standing on the top of an** inaccessiblehill, there were measured, the angle of elevation of the top of the hill 40°, and of the... | |
| Charles Davies - Geometry - 1870 - 398 pages
...В = 672 yards С А — 588 yards ACB = 55° 40'; required the distance AB. Ans. 592.067 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 feet. Applications. 4. Wanting to know the horizonD... | |
| Adrien Marie Legendre - Geometry - 1871 - 492 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...measuring in a direct line 180 feet farther from the hill,** thf angle of elevation of the top of the tower was 33° 45' ; required the height of the tower. Ans.... | |
| Charles Davies - Surveying - 1871 - 458 pages
...40'; required the distance AB. Ans. 592.967 yards. ELEMENTS OF SURVEYING. [BOOK n. Ans. 939.634 yards. **hill, there were measured, the angle of elevation...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 - 1872 - 464 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...measuring in a direct line 180 feet farther from the** bill, the of elevation of the top of the tower was 33° 45'; required the height of the tower. Ans.... | |
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