| Adrien Marie Legendre - 1819 - 574 σελίδες
...being sides of the same square ; and BF = BC, for the same reason; consequently the triangles ABF, HBC, have two sides and the included angle of the one respectively equal to two sides and the included angle of the other ; they are therefore equal (36). The triangle ABF is half of the rectangle BE], which... | |
| Adrien Marie Legendre - 1825 - 570 σελίδες
...Tig. 230. Demonstration. Let the side AB = EF (fig. 230), the ' side AC = EG, and the angle BAC = FEG, the triangle EFG can be placed upon the triangle ABC,...supposed equal we shall have the side BC= FG, the angle ABC = EFG, and the angle ACB = EGF. THEOREM. 481. Two triangles situated on the fame sphere, or on... | |
| Adrien Marie Legendre, John Farrar - 1825 - 280 σελίδες
...being sides of the same square; and BF=^ BC, for the same reason ; consequently the triangles ABF, HBC, have two sides and the included angle of the one respectively equal to two sides and the included angle of the other ; they are therefore equal (36). The triangle ABF is half of the rectangle BE], which... | |
| Eugenius Nulty - 1836 - 242 σελίδες
...determine such equality are comprised in the four following theorems. THEOREM VI. 38. If two triangles have two sides, and the included angle of the one...respectively equal to two sides and the included angle of the other, the remaining sides and angles are respectively equal. This theorem appears to be self-evident... | |
| Benjamin Peirce - 1837 - 216 σελίδες
...triangle ABC, symmetrical to ABC. 452. Theorem. If two triangles on the same sphere, or on equal spheres, have two sides, and the included angle of the one respectively equal to the two sides and the included angle of the other, they are equal, or else they are symmetrical. Isosceles... | |
| Adrien Marie Legendre - 1841 - 288 σελίδες
...being sides of the same square ; and BF= BC, for the same reason ; consequently the triangles ABF, HBC, have two sides and the included angle of the one respectively equal to two sides and the included angle of the other ; they are therefore equal (36). The triangle ABF is half of the rectangle BE,* which... | |
| Benjamin Peirce - 1847 - 204 σελίδες
...triangle ABC', symmetrical to ABC. 452. Theorem. If two triangles on the same sphere, or on equal spheres, have two sides, and the included angle of the one respectively equal to the two sides and the included angle of the other, they are equal, or else they are symmetrical. Proof.... | |
| Charles William Hackley - 1847 - 248 σελίδες
...confined to the second. PROP. IX. Two spherical triangles are either identical or symmetrical, 1°. When they have two sides and the included angle of the one equal to the same in the other ; 2°. When they have a side and two adjacent angles ; 3°. When they... | |
| Eli Todd Tappan - 1864 - 288 σελίδες
...sides (594). 773. Corollary — The radius heing the same, two spherical triangles are equal, 1st. When they have two sides and the included angle of the one respectively equal to those parts of the other, and similarly arranged ; 2d. When they have one side and the adjacent angles... | |
| Eli Todd Tappan - 1868 - 432 σελίδες
...might be used indifferently. TWO SIDES AND INCLUDED ANGLE. 284. Theorem — Two triangles are equal when they have two sides and the included angle of...respectively equal to two sides and the included angle of the other. If the angle A is equal to D, and the side AB to the side DF, and AC to DE, then the... | |
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