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He also discussed rational triangles. A rational triangle with the rational area and sides a, b, c, are of the form:

a = 1⁄2(u²⁄v + v), b = 1⁄2(u²⁄w + w), c = 1⁄2(u²⁄v – v + u²⁄w – w), for some rational numbers u, v, w.


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