The radius of the base of a cylinder is 28 cm, and the height of the cylinder is 48 cm. Find the surface area of the cylinder in terms of .

Question

anonymous · Answer

See, the area of the circular base is  pi * r^2 . And there are two circular bases one on either end, so total circular area is  

2 (pi * r^2)

And the area of the curved surface is  2 * pi * r * h

Now add both the area you must get ; 

2 * pi * r ( r +h) 

You can directly use the last formula.. but it will be more clearer to you if you do it in detail. Good luck

anonymous · Answer

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