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Perimeter

If ∆ PQR is r...

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If ∆ PQR is right angled at Q, PQ=QR. If QS is perpendicular to PR and QS=4cm,then the perimeter of ∆ PQR is: 1. 8(√2+1)cm 2. 8√2 cm 3. 16(√2+1)cm 4. 24 cm

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