 | Julius J. H. Hayn - Geometry, Plane - 1925 - 328 pages
...angle C, both being measured by J/£ arc BE. Therefore, the triangles BCF and AFE are similar, having two angles of the one equal, respectively, to two angles of the other. Then AF, opposite angle E, : CF, opposite the equal angle B, = FE, opposite the angle A, : FB opposite... | |
 | Anaritius, Gherardo (da Cremona) - Science - 2003 - 214 pages
...the proof is Heron's. C 96. Euclid I, 26: In any two triangles, two angles of one of which should be equal, respectively, to two angles of the other, and a side of one equal to a side of the other, that side being either between the two equal angles or opposite one... | |
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If two triangles have two angles of the one equal respectively to two angles of the other, the third angles are equal. 
