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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _edge_opposite_point(self, tri, i):
 """ Given a triangle, return the edge that is opposite point i. Vertexes are returned in the same orientation as in tri. """

        ind = tri.index(i)
        return (tri[(ind+1) % 3], tri[(ind+2) % 3])