CSEC Mathematics · May/June 2011 · Paper 2 · Question 5(b)(ii)
Diagram shows triangle PQR, cross section of a roof. QS is perpendicular to PSR. PQ = 12.6 metres, QR = 8.4 metres, ∠QPR = 15°.
Using the dimensions shown on the diagram, calculate, correct to 3 significant figures, the measure of ∠RQS.
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