 | James Howard Gore - Geometry - 1898 - 232 pages
...have an acute angle of one equal to an acute angle of the other. 2. Two triangles are similar when they have an angle of one equal to an angle of the other, and the sides including these angles proportional. 3. Two triangles are similar when the sides of one are parallel... | |
 | Webster Wells - Geometry - 1898 - 264 pages
...one of the tests of similarity is satisfied. PROP. XVII. THEOREM. 261. Two triangles are similar when they have an angle of one equal to an angle of the other, and the sides including these angles proportional. B _ B' Given, in &ABC and A'B'C', . i ' PROP. XVIII. THEOREM.... | |
 | Webster Wells - Geometry - 1899 - 424 pages
...one of the tests of similarity is satisfied. PROP. XVII. THEOREM. 261. Two triangles are similar when they have an angle of one equal to an angle of the other, and the sides including these angles proportional. A C B' Given, in A ABC and A'B'C', AC PBOP. XVIII. THEOREM.... | |
 | William James Milne - Geometry - 1899 - 404 pages
...equal bases, to their altitudes. § 336 c. To the products of their bases by their altitudes. § 336 d. If they have an angle of one equal to an angle of the other, to the products of the sides including the equal angles. § 340 e. If they are similar triangles, to... | |
 | William James Milne - Geometry, Modern - 1899 - 258 pages
...equal bases, to their altitudes. § 336 c. To the products of their bases by their altitudes. § 336 d. If they have an angle of one equal to an angle of the other, to the products of the sides including the equal angles. § 340 e. If they are similar triangles, to... | |
 | Harvard University - Geometry - 1899 - 39 pages
...respectively equal to two angles of the other, the triangles are similar. THEOREM III. If two triangles have an angle of one equal to an angle of the other and the sides including these angles proportional, the triangles are similar. THEOREM IV. If two triangles... | |
 | George Albert Wentworth - Geometry - 1899 - 496 pages
...other. BOOK III. PLANE GEOMETRY. PROPOSITION XVIII. THEOREM. 357. If two triangles have an angle of the one equal to an angle of the other, and the including sides proportional, they are similar. In the triangles ABC and A'B'C', let ^ A = ^ A', and let AB : A'B' = AC : A'C'. To... | |
 | George Albert Wentworth - Geometry, Plane - 1899 - 278 pages
...other. BOOK III. PLANE GEOMETRY. PROPOSITION XVIII. THEOREM. 357. If two triangles have an angle of the one equal to an angle of the other, and the including sides proportional, they are similar. In the triangles ABC and A'B'C', let ZA = Z A', and let AB : A'B' = AC : A'C'. To... | |
 | Charles Austin Hobbs - Geometry, Plane - 1899 - 266 pages
...each other as the products of the sides including the supplementary angles. Ex. 540. If two triangles have an angle of one equal to an angle of the other, and a second angle of one supplementary to a second angle of the other, the sides about the third angles... | |
 | George Albert Wentworth - Geometry, Solid - 1899 - 248 pages
...angle of the one is equal to an acute angle of the other. 357. If two triangles have an angle of the one equal to an angle of the other, and the including sides proportional, they are similar. 358. If two triangles have their sides respectively proportional, they are similar.... | |
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... they have an angle of one equal to an angle of the other and the including sides are proportional; (c) their sides are respectively proportional. 
