Question

A closed cylindrical tank of radius 7 cm and height is 3 m is made a sheet of metal. How much sheet of metal is required to make it?​

Answer 1

Answer: 132

Step-by-step explanation:

Amount of sheet required = Curved surface area of cylinder

=2$\pi$rh

=2*(22/7)*7*3

=2*22*3

=44*3=132 Cm^2

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Answer 2

Answer:

Tsa of cylynder 2pirh +2pir²

so

Step-by-step explanation:

2(7)(3)(3.14)+2(3.14)(49)

,=132+307

440