 | Samuel H. Winter - 1864 - 348 páginas
...1±6 = tan ? (A + B). ' a— It tan £ (А— в) 9. What is the angle of depression of an object ? From the top of a hill the angles of depression of two consecutive muestones on a straight, level road, were found to be 12° 13' and 2° 45' : find the height... | |
 | John Walmsley - 1865 - 232 páginas
...the tower to be 15° from S. How far is it from tower to steeple ? Given cot 75° = -26 nearly. 16. From the top of a hill the angles of depression of two consecutive milestones on a straight, level road, were found to be 12° 13' and 2° 45': find the height... | |
 | James Robert Christie - 1866 - 428 páginas
...and у respectively. Find the distance between the objects ; the height of the tower being h. 812. From the top of a hill the angles of depression of...45° and 30°, and the horizontal angle between them was also 30°; find the height of the hill in terms of the distance between the objects. 813. Wishing... | |
 | James Hamblin Smith - 1877 - 244 páginas
...bottom of the wall the flagstaff subtends an angle of 10°. Find the distance of E from the wall. (28) From the top of a hill the angles of depression of two consecutive mile-stones on a straight level road are found to bo 12°. 13' and 2°. 45'. Find the height... | |
 | 1881 - 504 páginas
...the secant in terms of the cotangent. Give the proper sign for an angle between 180° and 225°. 3. From the top of a hill the angles of depression of two consecutive milestones were observed to be 30° and 15°. What was the height of the hill ? 4. Name... | |
 | George Albert Wentworth - 1882 - 234 páginas
...its foot it will reach a window 21 feet high on the other side. Find the breadth of the street. 71. From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.... | |
 | George Albert Wentworth - 1884 - 330 páginas
...its foot it will reach a window 21 feet high on the other side. Find the. breadth of the street. 71. From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.... | |
 | George Albert Wentworth - 1887 - 372 páginas
...the elevation of the column, at the observer's station, is 45°. Find the height of the column. 62. From the top of a hill the angles of depression of two objects situated in the horizontal plane of the base of the hill are 45° and 30°; and the horizontal angle... | |
 | George Albert Wentworth - 1887 - 346 páginas
...its foot it will reach a window 21 feet high on the other side. Find the breadth of the street. 71. From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.... | |
 | George Albert Wentworth - 1887 - 206 páginas
...its foot it will reach a window 21 feet high on the other side. Find the breadth of the street. 71. From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.... | |
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From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°. 
