Question

A closed cylindrical tank is 3m deep and its base radius is 63cm if the tank is made of steel find the cost of steel used to make the tank at ₹185 per m2

Answer 1

Answer:

₹ 29548.2

Step-by-step explanation:

Height = 3 m.

Radius = 63 cm = 0.63 m.

As the question says that it a closed cylindrical tank ,

So, Total surface area = 2 x pi x r ( r+h)

= 2 x 22/7 x 0.63 ( 0.63 + 3 )

= 2 x 22 x 3.63

= 159.72 m^2

Now, cost of steel used = ₹185 x 159.72 m^2 = ₹ 29548.2

Hope it helps..!!