document.write( "Question 233408: Find the total surface area of a right triangular prism whose base sides are 5cm,12cm and 13cm,and its height is 11cm. the base is a right angled triangle..\r
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Algebra.Com's Answer #172348 by Alan3354(69443)\"\" \"About 
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Find the total surface area of a right triangular prism whose base sides are 5cm,12cm and 13cm,and its height is 11cm. the base is a right angled triangle..
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\n" ); document.write( "The base's area is 5*12/2 = 30. The \"top\" is also 30.
\n" ); document.write( "The other 3 faces have areas of:
\n" ); document.write( "11*5, 11*12 and 11*13
\n" ); document.write( "= 11*(5+12+13) = 11*30
\n" ); document.write( "Area = 330 + 30 + 30
\n" ); document.write( "Area = 390 sq cm
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