| Elias Loomis - Conic sections - 1858 - 256 pages
...also be equal, each to each, and the triangles themselves will be equal Let ABC, DEF be two triangles having the three sides of the one equal to the three sides of the other, viz. : AB equal to DE. BC to EF, and AC to DF ; then will the three angles also be equal, viz. : the... | |
| W. Davis Haskoll - Civil engineering - 1858 - 422 pages
...angle will be subtended by the greater side, and the lesser angle by the lesser side. Any two triangles having the three sides of the one equal to the three sides of the other, are equal, equilateral, and equiangular. Any two triangles having each an equal angle contained by... | |
| William E. Bell - Bridge building - 1857 - 250 pages
...The diagonal of a parallelogram divides it into two equal triangles. Cor. 2. When two triangles have the three sides of the one equal to the three sides of the other, the angles opposite the equal sides are also equal, and the triangles themselves are equal. Cor. 3.... | |
| William E. Bell - Bridges - 1859 - 226 pages
...The diagonal of a parallelogram divides it into two equal triangles. Cor. 2. "When two triangles have the three sides of the one equal to the three sides of the other, the angles opposite the equal sides are also equal, and the triangles themselves arc equal. Cor. 3.... | |
| Horatio Nelson Robinson - Geometry - 1860 - 468 pages
...theorem ; the difference between any two sidei of a triangle, etc. THEOREM XXI. If two triangles have the three sides of the one equal to the three sides of the other, each to each, the two triangles are eqml, and the equal angles are opposite the equal sides. In two triangles, as... | |
| George Roberts Perkins - Geometry - 1860 - 474 pages
...are equal, as in the case of a rhombus, we have AB = AD, and the two triangles AEB and AED will have the three sides of the one equal to the three sides of the other respectively, consequently they will be equal (T. XXV.), and the angle AEB = AED, that is, in a rhombus... | |
| Euclides - 1861 - 464 pages
...line to make a rectil. ¿. = я rcctil. ¿. DEM. 32, I. — I, VI.; 11, V.; 9, V.; 8, I.— Triangles having the three sides of the one equal to the three sides of the other, have the ¿.s equal which are contained by eq. sides. 4, I. If two д s have each two sides and their... | |
| Benjamin Greenleaf - Geometry - 1861 - 638 pages
...hence the angle BAC is greater than ABC. PROPOSITION XVII. — THEOREM. Let ABC, DBF bo two triangles, having the three sides of the one equal to the three sides of the other, each to each, namely, AB to DE, F / ACtoDF, andCB toEF; then their triangles will bo equivalent. Let 0 be the pole... | |
| Benjamin Greenleaf - Geometry - 1862 - 518 pages
...are mutually equilateral, they are equivalent. ELEMENTS OF GEOMETRY. Let ABC, DEF be two triangles, having the three sides of the one equal to the three sides of the other, each to each, namely, AB to DE, AC to DF, andCBtoEF; then their triangles will be equivalent. Let 0 he the pole of... | |
| Benjamin Greenleaf - Geometry - 1862 - 532 pages
...angle A must be greater than the angle D. PROPOSITION XVIII. — THEOREM. 80. If two triangles have the three sides of the one equal to the three sides of the other, each to each, the triangles themselves will be equal. Let the triangles ABC, DEF have the side AB equal to DE, А... | |
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