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How many cubic m of soil must be dug to make a well 20 m deep and 2m in diameter . If the curved surface of the well is to be plastered at a rate of Rs.

50/meter square , find the cost of plastering?


Volume of soil to be taken out
= \pi  r^{2} h
= \frac{22}{7}* 1^{2} *20
 =62.85 cubic m.   
1 2 1
amaizing . hi hi hi hiiiiii
ohhh is it really amazing
It is 62.8 cubic meter...........
1 5 1
amazing..... hahahaha
hiiiiii king what u want ????????
nothing, what will i want?!?!?!?!?
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