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Applying Pythagoras’ Theorem in Triangle \(PQR\)

Applying Pythagoras’ Theorem in Triangle \(PQR\)

Secondary 2

In triangle \(PQR\), \(PR=20\) cm, \(QR=6\) cm and angle \(PQR=90{}^\circ \) .

Calculate the length of \(PQ\).

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Answer:\(PQ=19.1\text{ cm}\)

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