The diameter of a circular table is 12m. There is a circular metallic ring on it of diameter 7m. What is the difference in the circumference of the table and the ring?
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Answer:
circumference=(22/7)r
circumference of table =(22/7)12m
=37.714m
circumference of ring =(22/7)7m
=22m
difference of the both=37.714m-22m
=15.714m
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