(C) 7:22 (d) 11:14 Q18. The circumference of two concentric circles forming. ring are 88 cm and 60 cm. Taking = 227, the width of ring is (a) 14 cm (b) 7 cm (c) 72 cm (d) 21 cm
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concentric circles forming. ring are 88 cm and 60 cm. Taking = 227, the width of ring is (a) 14 cm (b) 7 cm (c) 72 cm (d) 21 cm
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