Question

Volume of cylinder is 44 cubic centimetres and radius is 2 centimetres.find it's whole surface area.

Answer 1

Answer:

 = 69.12cm²

Step-by-step explanation:

Given,

  volume of the cylinder(v) = 44cm³

radius (r) = 2cm

from formula of volume,

 v = πr²h

or, 44 = 3.14 × 2²×h

or, 44 = 12.56 × h

or, 44/12.56 = h

∴ h = 3.50cm

To find:

total surface area (TAS)= ?

from formula,

    TSA = 2πr (r+h)

or,    = 2× 3.14 × 2 (2+ 3.50)

       = 12.56 × 5.50

∴      = 69.12cm²