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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 102
per Lefébure de Fourcy (M., Louis Etienne) - 1868 - 288 pàgines
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## Arithmetical magazine: or, Mercantile accountant, adapted to the commerce of ...

James Alexander Mackay - 1803 - 252 pàgines
...required ? Ans. height oj 'the rock 287.8 fathom. ofthehmsc 2.93 15+ cío. A ladder 40 feet long, reaches a window 33 feet from the ground on one side of the street ; but if raised, and laid against the opposite house without moving the foot, it will reach a window...
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## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1806 - 320 pàgines
...was 140\$ Yards (nearly). Required the Height of this stupendous Work ? (9) A Ladder 4O Feet long may be so planted that it shall reach a Window 33 Feet from the Ground on one Side the Street ; and without moving it at the Foot, will do the same by a Window 21 Feet high on the other...
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## A Course of Mathematics: In Two Volumes. For the Use of Academies ..., Volum 2

Charles Hutton - 1807
...5l. 16s. 0£<f. QUEST, 1. A ladder, 26y feet long, may be so planted, that it shall reach a window 22 feet from the ground on one sid.e 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 14...
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## The American Tutor's Guide: Being a Compendium of Arithmetic. In Six Parts ...

James Thompson - 1808 - 172 pàgines
...the rock to бй snid " 1'u-ght *ítk¡s *tti5)c;4d:ou-| wv-i. Base. 35. A ladder 40 feet long1 may be 'so planted, that it shall reach a window 33 feet from the ground ononesidethe street, and, without moving; it at the foot, will do the same by a window 21 feet high...
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## A Course of Mathematics ...: Composed for the Use of the Royal Military ...

Charles Hutton - 1811
...building, will support a jamb 23 feet 10 inches from the ground? Ans. 26 feet 3 inches. EXAM. vni. A ladder, 40 feet long, can be so planted, that it...window 33 feet from the ground, on one side of the streetj and by turning it over, without moving the foot out of its place, it will do the same by a...
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## A Course of Mathematics: In Three Volumes : Composed for the Use of the ...

Charles Hutton - 1811
...51. 16s. Q^d. QUEST. 1. A ladder, 26|- feet long, may be so planted, that it shall reach a window 22 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 14...
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## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1815 - 320 pàgines
...140|- yards, nearly. Required the height of this stupendous rock. (•)) A ladder 40 feet long may be so planted that it shall reach a window 33 feet from the ground on one side the street ; and, without moving it at the foot, will do the same by a window 21 feet high on the other...
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## A Course of Mathematics in Two Volumes for the Use of Academies, as ..., Volum 1

Charles Hutton - 1816
...from the ground ? Ans. 26 feet 3 inches. EXAM. vin. A ladder, 40 feet long, can be so planted, tkat it shall reach a window 33 feet from the ground, on...street; and by turning it over, without moving the foot out of its place, it will do the same by a window 2 1 feet high, on the other side : required the breadth...
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## The Teachers' Assistant, Or, A System of Practical Arithmetic: Wherein the ...

1817 - 198 pàgines
...the height of the fort ? Ans. 14.] 42-1- yards 7. 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 orí the other side 21 feet high ; what is the breadth...
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## A Course of Mathematics ...: For the Use of Academies, as Well as ..., Volum 1

Charles Hutton - 1818
...building, will support a jamb 23 feet 10 inches from the ground ? Ans. 26 feet 3 inches. EXAM. viii. A ladder, 40 feet long, can be so planted, that it...shall reach a window 33 feet from the ground, on one fide of the street ; and by turning it over, without moving the foot out of its place, it will do the...
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