How many square metre tin sheets is required to construct a closed cylinder tank of radius and height 2m and 5m respectively.
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Answer:
Given:
Radius r=7m, height =3m
We need to find the total surface area of a cylinder
=2πr(r+h)
=2×
7
22
×7(7+3)=440 sq meter
So, 440 sq m sheet of metal is required
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