document.write( "Question 976092: A triangular prism has a length of 18 inches, a width (or base) of 6 inches, a height of 20 inches and a side of 3 inches. What is the surface area of the prism?
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Algebra.Com's Answer #598985 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
HI there,
\n" ); document.write( "Divide the prism into parts of surface area:
\n" ); document.write( "A base = 6 x 18 = 108 ins^2
\n" ); document.write( "2 sides = 2(3 x 18) = 108 ins^2
\n" ); document.write( "2 triangular ends = 2( 1/2 (6x20))=120 ins^2
\n" ); document.write( "Total:
\n" ); document.write( "108 + 108 + 120 = 336 ins^2
\n" ); document.write( "Hope this helps:-)
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