 A ladder placed at an angle of 75° just reaches the sill of a window at a height of 27 feet above the ground on one side of a street. On turning the ladder over without moving its foot, it is found that when it rests against a wall on the other side...  Plane Trigonometry - الصفحة 220بواسطة Sidney Luxton Loney - 1893 - عدد الصفحات: 480عرض كامل - لمحة عن هذا الكتاب
 | Henry Major - 1876 - عدد الصفحات: 784
...3Jminntes , what is its length ? 2. A ladder 38 feet long just reaches to a window 29 ft. 6 in. high on one side of a street; on turning the ladder over without moving its foot it reaches a window 28 feet high on the other side; find the breadth of the street. ANSWERS. — CANDIDATES.... | |
 | Moffatt and Paige - 1879 - عدد الصفحات: 506
...minutes ; what is its length ? (69) A ladder 38 feet long just reaches to a window 29 feet 6 inches high on one side of a street ; on turning the ladder over, without moving its foot, it reaches a window 28 feet high on the other side ; find the breadth of the street. ANSWERS TO MENSURATION.... | |
 | Moffatt and Paige - 1881 - عدد الصفحات: 176
...in 3J min. ; what is its length ? 2. A ladder 38 ft. long just reaches to a window 29 ft. 6 in. high on one side of a street ; on turning the ladder over without moving its foot it reaches a window 28 ft. high on the other side ; find the breadth of the street ANSWERS IN ARITHMETIC.... | |
 | W T. Lawrence - 1882 - عدد الصفحات: 76
...14'7 inches nearly, -ans. 137. A ladder 38 feet long just reaches to a window 29 feet 6 inches high on one side of a street ; on turning the ladder over, without moving its foot, it reaches a window 28 feet high on the other side ; find the breadth of the street. The distances from... | |
 | John Bascombe Lock - 1892 - عدد الصفحات: 354
...difference of these values is 7. A ladder placed at an angle of 75° just reaches the sill of a window 27 feet above the ground on one side of a street....other side of the street, it is at an angle of 15°. Find the breadth of the street. 8. IfB = 36°46', 6 = 311-8785, c = 521-05, find C. \L sin B = 9-7771060,... | |
 | عدد الصفحات: 280
...of the boat from the bridge is 100^/6 feet. 25. A ladder placed at an angle of 75° with the ground just reaches the sill of a window at a height of 27...street and the length of the ladder are respectively 27(3-V3) and 27 (^6 - v/2) feet. 26. A rod of given length can turn in a vertical plane passing through... | |
 | عدد الصفحات: 108
...the ground on one side of a street, and makes 70° with the ground. Find the length of the ladder. On turning the ladder over without moving its foot,...is found that when it rests against a wall on the opposite side of the street it makes 20° with the ground. Find the width of the street. 30. Two lighthouses... | |
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