document.write( "Question 1076963: The total surface area of a right square prism is 230 ft^2. Find the height of the prism if the length of a side of a base is 5 ft. \n" ); document.write( "
Algebra.Com's Answer #691593 by ankor@dixie-net.com(22740)\"\" \"About 
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The total surface area of a right square prism is 230 ft^2.
\n" ); document.write( " Find the height of the prism if the length of a side of a base is 5 ft.
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\n" ); document.write( "let h = the height
\n" ); document.write( "We know it has a square base
\n" ); document.write( "L = 5' is the length of the base
\n" ); document.write( "w = 5' is the width of the base
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\n" ); document.write( "surface area
\n" ); document.write( "SA = 2(Lw) + 2(Lh) + 2(wh)
\n" ); document.write( "2(5*5) + 2(5h) + 2(5h) = 230
\n" ); document.write( "simplify, divide by 2
\n" ); document.write( "25 + 5h + 5h = 115
\n" ); document.write( "10h = 115 - 25
\n" ); document.write( "10h = 90
\n" ); document.write( "h = 90/10
\n" ); document.write( "h = 9' is the height
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\n" ); document.write( "Check:
\n" ); document.write( "2(5*5) + 2(5*9) + 2(5*9) =
\n" ); document.write( "50 + 90 + 90 = 230 \n" ); document.write( "
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