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Show that the relation R defined in the set A of all triangles as `R = {(T_(1),T_(2)}T_(1)` is similar to `T_2` } , is equivalence relation . Consider three right angle triangles `T_1` with sides 3,4,5 , `T_2` with sides 5,12, 13 and `T_3` with sides 6, 8, 10 . Which triangles among `T_1 , T_2 and T_3` are related ?

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