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OpenStudy (anonymous):
11.The diagram shows a right angled triangle PQR.The length of QR is 12cm and its area is 57.6cm^2.Find the value of PR^2,in cm^2,correct to three significant figures. @ganeshie8 @Directrix @hartnn @Jhannybean @Michele_Laino @mathmath333
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OpenStudy (anonymous):
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