Question

a closed cylindrical tank of height 1.4m and radius ​

Answer 1

Step-by-step explanation:

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)

= 2×22/7 ×0.56(1.4+0.56)

= 2×22×0.08×1.96=6.8992m2

Then metal sheet required = 6.9m2

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