Question

cylindrical Tower is 5 metre in diameter and 14 M height find the cost of white washing on its curved surface at the rate of 10rs per msq​

Answer 1

Answer:

Given diameter=5m and height =14m and cost =50 paise per m2

We k.n.t curved surface area =πdh, where d and h corresponds to diameter and height.

Therefore, curved surface area =πdh=π×5×14=219.9m2.

Total cost =area×cost per unit area

=220×0.50 Rs. per m2

= Rs. 110