document.write( "Question 481463: How do I find the surface area and volume of a frustrum? I have looked it up and it says there are special formulas but I have not learned those and I remember my teacher teaching us a specific way in which you find the larger cone and then subtract the smaller cone?? Help please! \n" ); document.write( "
Algebra.Com's Answer #329717 by ankor@dixie-net.com(22740)\"\" \"About 
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How do I find the surface area and volume of a frustrum.
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\n" ); document.write( "Area of the conical surface:
\n" ); document.write( "A = 3.1416s(R+r) = 1.5708s(D+d)
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\n" ); document.write( "Volume
\n" ); document.write( "V = 1.0472h(R^2+Rr+ r^2) = .2618h(D^2 + Dd+ d^2)
\n" ); document.write( "Where
\n" ); document.write( "s = the slant height
\n" ); document.write( "R = radius of the base
\n" ); document.write( "r = radius of the top
\n" ); document.write( "D = Diameter of the base
\n" ); document.write( "d = diameter of the top
\n" ); document.write( "h = vertical height
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\n" ); document.write( "To find Slant height (s)
\n" ); document.write( "a = R-r;
\n" ); document.write( "s = \"sqrt%28a%5E2+%2B+h%5E2%29\" = \"sqrt%28%28r-r%29%5E2%2B+h%5E2%29\"
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