Question
In the figure, MN is perpendicular to QR. ∠PRS = ∠MRQ. Given that ∠SRN = 21°, find ∠PRN.
2 m

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In the figure, MN is perpendicular to QR. ∠PRS = ∠MRQ. Given that ∠SRN = 21°, find ∠PRN.