| George Albert Wentworth - Geometry - 1888 - 272 pages
...proportional, but the homologous angles are not equal. PROPOSITION VII. THEOREM. 326. 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=ZA',... | |
| George Albert Wentworth - Geometry - 1888 - 264 pages
...proportional, but the homologous angles are not equal. PROPOSITION VII. THEOREM. V 326. If two triangles have an angle of the one equal to an angle of the othcr, and the including sides proportional, they are similar. In the triangles ABC and A'B'C ' , let... | |
| Edward Albert Bowser - Geometry - 1890 - 418 pages
...= 12, and AC — 10, find the lengths of the segments BD and CD. Proposition 1 8. Theorem. 314. Two triangles which have an angle of the one equal to an angle of the other, and the sides about these angles proportional, are similar. Hyp. In the A s ABC, A'B'C', let AB AC... | |
| Euclid - Geometry - 1890 - 442 pages
...their sides about the equal angles reciprocally proportional : (/3) and conversely, if two triangles have an angle of the one equal to an angle of the other, and the sides about the equal angles reciprocally proportional, the triangles have the same area. Let... | |
| William Kingdon Clifford - Mathematics - 1891 - 312 pages
...proposition about parallel lines.1 The first of these deductions will now show us that if two triangles have an angle of the one equal to an angle of the other and the sides containing these angles respsctively equal, they must be equal in all particulars. For... | |
| Examinations - 1893 - 408 pages
...tangent and a chord is measured by one half the intercepted arc. 1 2 5 Prove that 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. 16 6 Prove that the area of a regular... | |
| William Chauvenet - 1893 - 340 pages
...hence AD BC 'AT? A'D' B'C' and we have ARC _ = 'AT? A'B'O' EXERCISE. Theorem. — Two triangles having 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. Suggestion. Let ADE and ABC be... | |
| Henry Martyn Taylor - 1893 - 486 pages
...is to CD as EF to GH. (V. Prop. 16.) Wherefore, if the ratio ,fec. PROPOSITION 23. If two triangles have an angle of the one equal to an angle of the other, tlte ratio of the areas of the triangles is equal to the ratio compounded of the ratios of the sides... | |
| George Albert Wentworth, George Anthony Hill - Geometry - 1894 - 150 pages
...circumferences at B and C respectively ; show that BA is perpendicular to AC. 4. Assuming that 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, prove that the bisector of an angle... | |
| John Macnie - Geometry - 1895 - 390 pages
...QED (232"') SCHOLIUM. The theorem may be expressed also under the form : The areas of triangles that have an angle of the one equal to an angle of the other, are as the products of the sides about those angles. PROPOSITION IX. THEOREM. 342. Similar triangles are... | |
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