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" Prove that in any triangle the square on the side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the product of one of these sides and the projection of the other upon that side. "
Elements of Geometry Upon the Inductive Method: To which is Added an ... - Página 63
por James Hayward - 1829 - 172 páginas
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Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - 1854 - 436 páginas
...and side of a square are incommensurable. PROPOSITION XII. THEOREM. In any triangle, the square of a side opposite an acute angle is equivalent to the sum of the squares of the base and the other side, diminished by twice the rectangle contained by the base and the d1stance...
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A Treatise on Special Or Elementary Geometry: An advanced course in geometry

Edward Olney - 1872 - 102 páginas
...also as a direct consequence of (36O). FIG. 377. 669. In an oblique angled triangle the square of a side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the rectangle of the base, and the distance from the acute...
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A Treatise on Special Or Elementary Geometry, Volúmenes1-2

Edward Olney - 1872 - 562 páginas
...direct consequence of (360). fc~— — J Fio. 877. 66,9. In an oblique angled triangle the square of a side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the rectangle of the base, and the distance from the acute...
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A Treatise on Special Or Elementary Geometry: In Four Parts ..., Parte3

Edward Olney - 1872 - 96 páginas
...also as a direct consequence of (360), \ FIG. 377. 669. In an oblique angled triangle the square of a side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the rectangle of the base, and the distance from the acute...
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Elements of Plane and Solid Geometry

George Albert Wentworth - 1877 - 436 páginas
...; that is, D P. GEOMETRY. — BOOK IV. PROPOSITION IX. THEOREM. 335. In any triangle, the square un the side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the...
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An Elementary Geometry: Plane, Solid, and Spherical : with Numerous ...

William Frothingham Bradbury - 1877 - 262 páginas
...AGHB ; or 671 Corollary. Since ~A~T? and BOOK IL THEOREM XXVIII. 68 1 In a triangle the square of a side opposite an acute angle is equivalent to the sum of the squares of the other two sides minus twice the product of one of these sides and the distance from the vertex...
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An Elementary Geometry: Plane, Solid and Spherical

William Frothingham Bradbury - 1880 - 260 páginas
...AGHB , or 67i Corollary. Since re- 2 —Tff +TC2 THEOREM XXVIII. 68. In a triangle the square of a side opposite an acute angle is equivalent to the sum of the squares of the other two sides minus twice the product of one of these sides and the distance from the vertex...
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Essentials of Geometry

Alfred Hix Welsh - 1883 - 326 páginas
...THEOREM XII. In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides minus twice the rectangle contained by one of these sides and the projection on it of the other. Let a, b, c, be the sides of the triangle, A va...
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Elements of Plane and Solid Geometry

George Albert Wentworth - 1885 - 424 páginas
...th perpendicular CP; that is, D P. PROPOSITION IX. THEOREM. 335. In any triangle, the square on ihe side opposite an acute angle is equivalent to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the...
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Exercise Manuals, Tema 3

George Albert Wentworth - 1889 - 276 páginas
...equivalent to the sum of the squares upon the two legs. 191. Theorem. In a triangle the square upon a side opposite an acute angle is equivalent to the sum of the squares upon the other two sides, diminished by twice the rectangle of one of these sides and the projection...
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