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Circular area of same size have been mar...

Circular area of same size have been marked to drill holes in a road. If the radius of one of the holes to be drilled is 21 cm, and there are 10 holes to be drilled along the road, what is the total area in sq.cm. of all the 10 circle marked to be drilled (`pi = 22/7`)

A

13860

B

1836

C

11836

D

1386

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