Question 612509
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi, 
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A right circular cone has a radius 12 inches and a height of 25 inches
Note: {{{ s = sqrt(r^2 + h^2)}}} and {{{A[L] = pi*r*s}}}
{{{A[L] = pi*r*sqrt(r^2 + h^2) = 12*pi*sqrt(144+625) = 12*pi*sqrt(769)}}}