Detailed Instructions: In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
Q: Two circles are internally tangent at a point T. A chord AB of the outer circle touches the inner circle at the point P. Prove TP always bisects ∠ATB?
A:
AB and DC are two chords of a circle, centre O. If AB and DC meet at P and OP bisects angle APC internally, how do you prove that AB = DC?