Question

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Use ΔPQR below to answer the question that follows:

Which fact is not used to prove that PQR is similar to STR?

Segments ST and PQ are parallel.

Angle P is congruent to itself due to the reflexive property.

RP is a transversal line passing ST and PQ.

Angles RTS and RQP are congruent due to the Corresponding Angles Postulate.