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 in full step​

Answer 1

Answer:

find the cost of whitewashing its curved surface at 10rupees/- per square metre

Solution :

⇛ r = 5/2 m

⇛ h = 14 m

curved surface area = 2πrh

⇛ 2 x 22/7 x 5/2 x 14

⇛ 2 x 22/7 x 5 x 7

⇛ 2 x 22 x 5 x 1

⇛ 44 x 5 x 1

⇛ 220 m²

now ,

cost of whitewashing

⇛ 220 x 10 rs

=>2200rs