 | George Albert Wentworth - 1877 - 426 páginas
...PROPOSITION XLIV. THEOREM. 140. Two parallelograms, having two sides and the included angle of the one equal respectively to two sides and the included angle of the other, are equal in all respects. B СВ' С' A -------- DA, In the parallelograms AB С D and A' B' С' D', let... | |
 | George Albert Wentworth - 1881 - 266 páginas
...PROPOSITION XLIV. THEOREM. 140. Two parallelograms, having two sides and the included angle of the one equal respectively to two sides and the included angle of the other, are equal in all respects. B CD О A DA' 111 the parallelograms AB С D and A' B' C' D', let AB = A'B',... | |
 | George Bruce Halsted - 1886 - 394 páginas
...have central symmetry in a plane, either can be made to coincide with the other by turning it in the plane through a straight angle. This holds good when...given equal are arranged in the same order, as in DBF and ABC, then the triangle DEF can be moved in the sphere until it coincides with ABC. TWO-DIMENSIONAL... | |
 | Webster Wells - 1886 - 392 páginas
...and D'DC are equal, and their planes are parallel (§ 455). Then the parallelograms AB' and DC' have two sides and the included angle of one equal respectively to two sides and the included angle of the other. Therefore the faces AB' and DC' are equal (§ 123), and their planes are parallel. In... | |
 | Edward Albert Bowser - 1890 - 418 páginas
...to one of its sides. Proposition 9. Theorem.* 709. Two triangles on the same, or on equal spheres, having two sides and the included angle of one equal...sides and the included angle of the other, are either equal or equivalent. Hyp. Let ABC, DEF be two A s having the side AB = DE, the side AC = DF, and the... | |
 | Edward Albert Bowser - 1890 - 420 páginas
...reduced to one of its Proposition 9. Theorem.* 7O9. Two triangles on the same, or on equal spheres, having two sides and the included angle of one equal respectively to iwo sides and the included angle of the other, are either equal or equivalent. Hyp. Let ABC, DEF be... | |
 | William Benjamin Smith - 1892 - 314 páginas
...two triangles congruent? 47. Theorem XIII. — Two A having two sides and the included angle of the one equal respectively to two sides and the included angle of the other are congruent. The data are: Two A, ABC and A'£'C', having the three equalities, A£ = A'£'9 AC = A'C',... | |
 | William Benjamin Smith - 1892 - 160 páginas
...two triangles congruent ? 47. Theorem XIII. — Two A having two sides and the included angle of the one equal respectively to two sides and the included angle of the other are congruent. The data are: Two A, ABC and A'B'C, having the three equalities, AB = A'B', AC = A'C', a... | |
 | Arthur Latham Baker - 1893 - 150 páginas
...other line joining the two points. QED PROPOSITION IX. THEOREM. 275. Two triangles on equal spheres, having two sides and the included angle of one equal...sides and the included angle of the other, are either equal or equivalent. Proof. By superposing one Sph. A upon the other, or upon its symmetrical, the... | |
 | William Benjamin Smith - 1893 - 330 páginas
...two triangles congruent? 47. Theorem XIII. — Two A having two sides and the included angle of the one equal respectively to two sides and the included angle of the other are congruent. The data are : Two A, ABC and A'B'C, having the three equalities, AB = A'B', AC = A'C',... | |
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If two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, the triangles are equal. 
