In Fig. sides QP and RQ of PQR are produced to points S and T respectively. If ∠SPR=135^∘ and ∠PQ...

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In Fig. sides QP and RQ of PQR are produced to points S and T respectively. If ∠SPR=135^∘ and ∠PQT=110^∘, find ∠PRQ.
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