 A ladder 40 feet long may be so placed that it will reach a window 33 feet high on one side of the street, and by turning it over without moving its foot it will reach a window 21 feet high on the other side. Find the breadth of the street.  Elements of Trigonometry, Plane and Spherical - Pàgina 108per Lefébure de Fourcy (M., Louis Etienne) - 1868 - 288 pàginesVisualització completa - Sobre aquest llibre
 | James Elliot - 1851 - 152 pàgines
...shaft ? Ans. 21•4 +feet. 11. A ladder, 50 feet long, being placed in a street, reached a window 48 feet from the ground, on one side of the street; and by turning it over without removing the foot, it reached another window 40 feet high on the other side : the breadth of the street... | |
 | Charles William Hackley - 1851 - 536 pàgines
...inches above the ground 1 Ans. 26 feet 3 inches. , (16.) Suppose that a ladder, 40 feet long, will reach a window 33 feet from the ground on one side of a street, and on being turned over, without moving the foot, it will reach a window 21 feet high on... | |
 | 1852 - 202 pàgines
...is the height of the fort? Ans. 14.142+ yards. 8. Suppose a ladder 40 feet long be so planted as to reach a window 33 feet from the ground, on one side of the street, and without moving it at the foot, will reach a window on the other side 21 feet high ; what is the breadth... | |
 | Charles Davies - 1852 - 438 pàgines
...perpendicular 45 yards : what is the base ? 3. A ladder 60 feet in length, will reach to a window 40 feet from the ground on one side of the street, and by turning it over to the other side, it will reach a window 50 feet from the ground: required the breadth of the street.... | |
 | Charles Davies - 1886 - 340 pàgines
...base ? Ans. 28 yds. 4 A ladder 60 feei in length, will reach to a window 40 Mensuration of Surfaces. feet from the ground on one side of the street, and by turning 1t over to the other side, it will reach a window 50 feet from ihf ground : required the breadth of... | |
 | James Gray - 1854 - 120 pàgines
...cloth, how much will | of a yd. cost ? Ans. 9s. 4¿c?. 41. A ladder 40 feet long may be so placed as to reach a window 33 feet from the ground on one side of the street; and by only turning it over, without moving the foot out of its place, it will do the same by a window 21... | |
 | John Radford Young - 1855 - 218 pàgines
...were 880 yards apart ; required the height of the balloon. (7) A ladder 40 feet long can be so placed that it shall reach a window 33 feet from the ground, on one side of the street ; and upon being turned over, the foot of it remaining in the same place, it will reach a window on the opposite... | |
 | Charles Davies - 1855 - 340 pàgines
...53 yards, ana tne perpendicular 45 yards : what is the base ? Ans- 28 ydsMensuration of Surfacesfeet from the ground on one side of the street, and by turning it Over to the other side, it will reach a window 50 feet from the ground : required the breadth of the streetArts... | |
 | Thomas Dick - 1857 - 892 pàgines
...on the subject, in the book from which it is taken. " A ladder, 40 feet long, may be so placed as to reach a window 33 feet from the ground on one side of the street; and by only turning it over, without moving the foot out of its place, it will do the same by a window 21... | |
 | Elias Loomis - 1859 - 218 pàgines
...inches beyond the stream ? Ans. 530 feet 5 inches. Prob. 10. A ladder 40 feet long may be so placed that it shall reach a window 33 feet from the ground...street, and by turning it over, without moving the foot out of its place, it will do the same by a window 21 feet high on the other side. Required the breadth... | |
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