Question

find the volume and total surface of area of a cylinder whose height is 12cm and radius of its base is 5cm.

Answer 1

Vol. = pi*r^2*h
       = 22/7*5*5*12
       = 942.8 cm^3
TSA = 2*pi*r(r+h)
        = 2*22/7*5(5+12)
        =  534.2 cm^2

Answer 2

Volume of cylinder = pi * r * r * h
                               = 3.14 * 5 * 5 * 12
                               = 942 cm^3

TSA of cylinder  = 2 * pi * r *(h+r)
                           = 2*3.14*5*(5+12)
                           = 533.8 cm^2