Question 840158
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
<img src='http://img834.imageshack.us/img834/5854/cylinderg.png' border='0'/></a>
<u>If the area of base of a cylinder is 45 sq.cm. {{{pi*r^2 = 45cm^2}}} {{{r = sqrt(45cm^2/pi)}}}
</u> Height is 9 cm
V = {{{pi*r^2h = 45cm^2*9cm = 405cm^2 }}}
{{{S[T] = 2pi*rh + 2pi*r^2}}}
{{{S[T] = 2pi*sqrt(45cm^2/pi)(9cm) + 90cm^2}}}
0r 
{{{S[T] = 2sqrt(45cm^2*3.14)(9cm) + 90cm^2}}}