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 Bøker Bok 11–20 av 189 på The areas of two triangles which have an angle of the one equal to an angle of the... The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw... Elements of Geometry and Trigonometry - Side 86
av Adrien Marie Legendre - 1836 - 359 sider
Uten tilgangsbegrensning - Om denne boken ## Elements of Geometry: With Practical Applications, for the Use of Schools

Timothy Walker - 1829 - 129 sider
...vertices by the space of a quadrant, the sides will become parallel each to each. 3. — When they have an angle of the one equal to an angle of the other, and the sides including these angles proportional. Thus if the angle A = A (fig. 45), and if AB : AD : : AC : AF,...
Uten tilgangsbegrensning - Om denne boken ## Elements of Geometry Upon the Inductive Method

James Hayward - 1829 - 172 sider
...suppress , BD . ... ABC ABXAC the common factor =-, we snail have —AE~V~AF' That is — If two triangles have an angle of the one equal to an angle of the other, their areas will be as the products of the sides containing the equal angles. Fig. 94. 17o if we take...
Uten tilgangsbegrensning - Om denne boken ## Geometry, Plane, Solid, and Spherical, in Six Books: To which is Added, in ...

Pierce Morton - 1830 - 272 sider
...side (r). 3. The three sides (/). 4. Two angles, and a side opposite to one of them . »r. 14 5. Au angle of the one equal to an angle of the other, and the sides about two other angles, each to each, and the remaining an;;!« of the same affection, or one of them...
Uten tilgangsbegrensning - Om denne boken ## Library of Useful Knowledge: Geometry, plane, solid, and spherical [by ...

1835
...interjacent side (c). 3. The three sides (/). 4. Two angles, and a side opposite to one of them . cor. 14 5. An angle of the one equal to an angle of the other, and the sides about two other angles, each to each, and the remaining angles of the same affection, or one of them...
Uten tilgangsbegrensning - Om denne boken ## First Part of an Elementary Treatise on Spherical Trigonometry

Benjamin Peirce - 1836 - 71 sider
...8.) is the difference between DER and the sum of the other two triangles. 86. Lemma. If two triangles have an angle of the one equal to an angle of the other ; and the sides which include the angle in one triangle are supple- 1887) ments of those which include it in the other...
Uten tilgangsbegrensning - Om denne boken ## First Part of an Elementary Treatise on Spherical Trigonometry

Benjamin Peirce - 1836 - 71 sider
...is the difference between DER and the surn of the other two triangles. 86. Lemma. If two triangles have an angle of the one equal to an angle of the other ; and the sides which include the angle in one triangle are supplements of those which include it in the other triangle...
Uten tilgangsbegrensning - Om denne boken ## An Elementary Treatise on Plane and Solid Geometry

Benjamin Peirce - 1837 - 159 sider
...equilateral or equiangular with respect to each other, are equivalent. 467. Lemma. If two triangles have an angle of the one equal to an angle of the other ; and the sides which include the angle in one triangle are supplements of those which include it in the other triangle...
Uten tilgangsbegrensning - Om denne boken ## The First Six and the Eleventh and Twelfth Books of Euclid's Elements: With ...

Euclid - 1837 - 390 sider
...parallelogram AB is equal to the parallelogram BC. Therefore equal parallelograms, &c. PROP. XV. THEOR. EQUAL triangles which have an angle of the one equal to an angle of the other, have their sides about those angles reciprocally proportional : and (2.) triangles which have an angle...
Uten tilgangsbegrensning - Om denne boken ## Euclid's Elements of plane geometry [book 1-6] with explanatory appendix ...

Euclides - 1840
...an angle (BAD) of the other, have the sides about the equal angles reciprocally proportional : and, triangles which have an angle of the one equal to an angle of the other, and the sides about the equal angles reciprocally proportional, are equal. Let the triangles be so placed that the...
Uten tilgangsbegrensning - Om denne boken ## The figures of Euclid with the enunciations, as printed in Euclid's Elements ...

Euclides - 1840
...other, and the sides about the equal angles reciprocally proportional, are equal. PROP. XV. THEOR. Equal triangles which have an angle of the one equal to an angle of the other, have the sides about the equal angles reciprocally proportional : and triangles which have an angle...
Uten tilgangsbegrensning - Om denne boken