The radii of two concentric circles are 17 cm and 10 cm ;a line PQRS cuts the largrer circle at P and S and the smaller circle at Q and R .If QR=12cm ,calculate PQ
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The length of PQRS will be 34 cm as radius of larger circle is 17 cm . To find the length of PQ subtract 12 from 34 nd then divide it by 2 which is equal to 11
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