Sunday, May 19, 2013

Find the surface area of the cylinder if given the volume = 234 and the height = 12

Given the volume of the cylinder is v=
234


The height = 12


We need to
find the surface area.


First we will need to find the
radius.


We know that the volume if given by
:


v= r^2*pi*h where r is the
radius.


==> 234= r^2 * pi *
12


==> r^2 = 234/12pi = 6.2
(approx.)


==> r= 2.49 (
approx.)


Now we will calculate the surface
area.


SA = r^2*pi +
h*2*r*pi


SA = (2.49)^2 * pi + 12*2*2.49*pi= 19.48 +
187.74=


     =
207.22


Then, the surface area of the cylinder
is 207.22 square units.

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