Triangle PQR has sides

MATHEMATICS · Single correct · CBSE · Mathematics · The Baudhayana-Pythagoras Theorem · The Baudhayana-Pythagoras Theorem

Problem

Triangle PQR has sides PQ=9 cmPQ = 9\text{ cm}, QR=12 cmQR = 12\text{ cm} and PR=15 cmPR = 15\text{ cm}. What can be concluded about ∠Q\angle Q? (a) ∠Q\angle Q is an obtuse angle (>90∘)(>90^{\circ}). (b) No conclusion can be drawn about ∠Q\angle Q. (c) ∠Q\angle Q is a right angle (90∘)(90^{\circ}). (d) ∠Q\angle Q is an acute angle (<90∘)(<90^{\circ}).

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