Question

a closed cylindrical tank of height 1=40m .and radius of the base is 56cm. is made up of athick metal sheak sheet .how much metal sheet is required (express in squqre meters) .
​

Answer 1

Answer:

Given the height of cylindrical tank =h=1.4 m

And Radius of cylindrical tank =56 cm =0.56 m

So the Metal sheet required to make cylindrical tank are = total surface area of cylindrical tank= 2πr(r+h)

= 2×

7

22

×0.56(1.4+0.56)

= 2×22×0.08×1.96=6.8992m

2

Then metal sheet required = 6.9m

2

Answer 2

Ans: the total amount of sheet required = 68992cm²(approx=6.9m²)