Mathematics

Mathematics

Problem

In △PQR\triangle PQR, side QPQP is produced to point SS so that ∠RQS\angle RQS is an exterior angle of 124∘124^\circ. Which of the following is always true for the triangle? a) ∠P+∠Q=124∘\angle P + \angle Q = 124^\circ b) ∠P+∠Q+∠R=124∘\angle P + \angle Q + \angle R = 124^\circ c) ∠P+∠R=124∘\angle P + \angle R = 124^\circ d) ∠P+∠R=56∘\angle P + \angle R = 56^\circ

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