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A ladder, 40 feet long, can be so planted, that it shall reach a window 33 feet from the ground, on one side of the street; and by turning it over, without moving the foot, it will do the
ELEMENTS OF TRIGONOMETRY, PLANE AND SPHERICAL - Pągina 128
per LEFEBURE DE FOURGY - 1871
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## A Complete Treatise on Practical Mathematics: Including the Nature and Use ...

John McGregor (teacher of mathematics.) - 1792 - 431 pągines
...length, that, by planting it on a ftreet 70 feet wide, it will reach a window on one fide 40 feet high ; by turning it over, without moving the foot, it will do the fame by a window 30 feet ;—required the length of the ladder. Anf. 50 feet. 8. What ought to be the...
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## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1806 - 320 pągines
...inaccessible, I endeavoured to measure, and found by a Mathematical Me(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
...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...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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## The American Tutor's Guide: Being a Compendium of Arithmetic : in Six Parts

James Thompson - 1808 - 172 pągines
...of the rock to tue said he.1404 vards: Required the •""Uous -woļV. 35. 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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## The American Tutor's Guide: Being a Compendium of Arithmetic. In Six Parts ...

James Thompson - 1808 - 172 pągines
...;Ъе æ j vavds, ч) from t!ic top of the rock to бй snid Base. 35. A ladder 40 feet long 1 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: In Three Volumes : Composed for the Use of the ...

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...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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## 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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## The Teachers Assistant. Or, A System of Practical Arithmetic: Wherein the ...

1811 - 198 pągines
...the height of the fort ? Ans. 14.142-(-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 on 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 - 1812
...building, will support a jamb 23 feet 10 inches from the ground ? Ans. 26 feet 3 inches. ExAM. vin. A ladder, 40 feet long, can be so planted, that it...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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## The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - 1815 - 320 pągines
...rock. (10) A line, 27 yards long, will exactly reach from the top (•)) 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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