Question

1. How much metal sheet is required to make a closed cylindrical tank of height 50
of base 112 cm? Find the area of the metal sheet in sq. m.(answer is 3.7312m^2give me the solution )​

Answer 1

because

T. S. A. ( total surface area) of cylinder is 2πr(r+h)

=2 ×22/7 ×56 ( as the diameter of cylinder is 112)

[50+56]

=352×106

=37312

converting in to simplest form

=3.7312×10^4(because there are 4 digit after 3)

or 3.7312cm sq.