the inner diameter of a circular well is 3.5m .it is 10m deep .find
a) it's inner curved surface area
b) the cost of plastering this curved surface at the rate of₹40per metre square
Answers
Answered by
8
CSA of cylinder=2πrh
= 2 x 22/7 x 3.5/2 x 10
=. 110 m^2
cost at per meter square is ₹40
40 x 110
₹4400
Similar questions