A closed cylindrical tank has a height of 200 cm and a diameter of 126 cm
What is the total area of the sheet of a metal used to make this tank?

Area of the sheet used to make the tank = total surface area of the cylinder = 2r(r+h) = 2 x 22/7 x 63 x 263 = 104148 sq. cm.

Total Area = 104106.097 cm²

Step-by-step explanation:

Step 1:

We know that the total area of cylindrical tank is

TOTAL AREA = 2πR² + 2πRH units

where R =radius

           H= Height

Step 2:

Radius = 63 cm

Height = 200 cm

Total area =

Total area      = 104106.097 cm²

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step-by-step explanation: