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" If the square described on one side of a triangle be equal to the sum of the squares described on the other two sides, the angle contained by these two sides is a right angle. "
Reports on Elementary schools - Strona 810
autor: Her MAjesty' Inspectors of schools - 1850
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A System of Popular Geometry: Containing in a Few Lessons So Much of the ...

George Darley - 1836 - Liczba stron: 172
...there will remain the complement EGDI ;— hence, these remaining complements are equal. ART. 182. If the square described upon one side of a triangle be equal to the squares described on the other sides of the triangle, taken together, the angle opposite to the first-mentioned...
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An Elementary Treatise on Plane and Solid Geometry

Benjamin Peirce - 1837 - Liczba stron: 216
...parallel. 256. Theorem. The square described upon the hypothenuse of a right triangle is equivalent to the sum of the squares described upon the other two sides. Demonstration. Let squares be constructed upon the three sides of the right triangle ABC (fig. 130),...
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Proceedings

Scotland free church, gen. assembly - 1847 - Liczba stron: 554
...straight lines, it makes the alternate angles equal. 2. If the square described on one of the sides of a triangle be equal to the sum of the squares described on the other two sides, these sides contain a right angle. 3. Divide a given line into two parts, so...
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An Elementary Treatise on Plane and Solid Geometry

Benjamin Peirce - 1847 - Liczba stron: 204
...parallel. ' 256. Theorem. The square described upon the hypothenuse of a right triangle is equivalent to the sum of the squares described upon the other two sides. Proof. Let squares be constructed upon the three sides of the right triangle ABC (fig. 130), right-angled...
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Minutes ...: Correspondence, Financial Statements, Etc., and Reports ..., Tom 2

Great Britain. Committee on Education - 1850 - Liczba stron: 942
...1. '20. Any two sides of a triangle are together greater than the third side. 9. Prove Euc. I. 48. If the square described upon one side of a triangle be equal to the squares described upon the other two sides, the angle contained by those two sides is a right angle....
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Annual Report of the Commissioners ...

1851 - Liczba stron: 382
...have an angle equal to a given angle, . •I. If the square described upon one of the sides _ 1C 3 of a triangle be equal to the sum of the squares described on the other two sides, the angle contained by those two sides is a right angle, . . 3. If a straight...
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The Elements of Euclid [book 1] for beginners, by J. Lowres

Euclides - 1852 - Liczba stron: 48
...from the square of the hypotenuse, and extract the square root of the difference. PEOP. XLVIII. THEOH. If the square described upon one side of a triangle be equal to the squares described upon the other two sides, the angle opposite to that side is a right angle. In the...
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Elements of geometry and mensuration

Thomas Lund - 1854 - Liczba stron: 520
...converse of this proposition is also true, viz. that ' if the square described upon one of the sides of a triangle be equal to the sum of the squares described upon the other two sides of it, the angle between these two sides is a right angle.' Let ABC be a triangle, such that square of AC + square of...
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Mathematics Simplified and Made Attractive: Or, The Laws of Motion Explained

Thomas Fisher - 1854 - Liczba stron: 156
...forty-seventh proposition of the first book of Euclid, viz : that the square described upon the hypothenuse is equal to the sum of the squares described upon the other two sides ja demonstration «>f the highest importance, from the very numerous- applications it finds in every...
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Mathematical Dictionary and Cyclopedia of Mathematical Science: Comprising ...

Charles Davies, William Guy Peck - 1855 - Liczba stron: 628
...opposite the right angle. In a plane triangle the square described upon the hypothenuse is equivalent to the sum of the squares described upon the other two sides. С In the right angled triangle ВЛС, right angled at B, we have AC' О BA' + CB>. In the right angled...
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