 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
 | Elias Loomis - 1859 - 372 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... | |
 | Charles Davies - 1863 - 436 pàgines
...53 yards, and tne per pendicular 45 yards : what is the base 1 Ans- 28 ydsMensurat1on of Surfaces. 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.... | |
 | Alfred Challice Johnson - 1865 - 166 pàgines
...Ans. 7-4 knots per hour. 10. A ladder 36 feet long may be so placed that it shall reach a window 30-7 feet from the ground, on one side of the street, and by only turning it over, without moving the foot from its place, it will reach another window 18*9 feet... | |
 | C. Davies - 1867 - 342 pàgines
...yards, and tne per pendicular 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 streetAns... | |
 | Alfred Challice Johnson - 1871 - 178 pàgines
...Ans. 7-4 knots per hour. 10. A ladder 36 feet long may be so placed that it shall reach a window 307 feet from the ground, on one side of the street, and by only turning it over, without moving the foot from its place, it will reach another window 18-9 feet... | |
 | Henry William Jeans - 1873 - 292 pàgines
...they refer. [6]. (Fig. 19.) A ladder 36 feet long may be so placed that it shall reach a window 30'7 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 reach another window 18 '9... | |
 | Elias Loomis - 1877 - 458 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 Bide. Required the breadth... | |
 | James Elliot - 1879 - 118 pàgines
...shaft? Ans. 21•4 + feet. G. 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... | |
 | George Albert Wentworth - 1882 - 160 pàgines
...to the window ? 70. A ladder 40 feet long may be so placed that it will reach a window S3 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. 71.... | |
 | James Gray - 1883 - 154 pàgines
...cloth, how much will f of a yd. cost ? Ans: 9s. 4^d. 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... | |
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