 | Euclid - 1908 - 196 σελίδες
...of the other have their sides about the equal angles reciprocally proportional, (ii) Triangles which have one angle in the one equal to one angle in the other and the sides about the equal angles reciprocally proportional are equal in area. SECTION IX. PROPOSITIONS... | |
 | Royal Statistical Society (Great Britain) - 1845 - 786 σελίδες
...angles reciprocally proportional : and triangles which have one angle of the one equal to one angle of the other, and their sides about the equal angles reciprocally proportional, are equal. 5. A common tangent is drawn to two circles which touch externally : if a circle be described on that... | |
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... triangles which have one angle in the one equal to one angle in the other, and their sides about the equal angles reciprocally proportional, are equal to one another. 
