A closed cylindrical tank is made up to a sheet of metal. The height of the tank is 1.3 m and radius is 70 cm. How much sq. m of sheet metal was required?

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Solution

Height of the cylindrical tank (h)

Radius of the tank (r)

Area of the required sheet metal = Total surface area of the tank

Thus, 8.8 sq. m. of sheet metal is required.

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