document.write( "Question 1176072: A trapezoidal room is to be tiled. The bases are 90 feet and 100 feet, and the
\n" ); document.write( "height is 30 feet. What is the cost if the tile costs $1.10 per square foot? \n" ); document.write( "

Algebra.Com's Answer #802059 by Edwin McCravy(20065) $\"\"$ $\"About$

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A trapezoidal room is to be tiled. The bases are 90 feet and 100 feet, and the
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document.write( "First we average the bases by adding them and taking half\r\n" );
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document.write( "adding the bases gives 90+100 = 190\r\n" );
document.write( "Dividing by 2 gives 95 for the average base\r\n" );
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document.write( "So we plug in the formula:\r\n" );
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document.write( "Then we multiply by $1.10 per sq. ft.\r\n" );
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document.write( "Edwin

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