document.write( "Question 90479: The shorter parallel side of a trapezoid is equal to its height and the longer side is 3/2 times as long. If the area is 80, find the lengh of the shorter side. \n" ); document.write( "
Algebra.Com's Answer #65760 by scott8148(6628)\"\" \"About 
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let x=shorter side ... area=(average of sides)(height) ... 80=((x+3x/2)/2)(x) ... 80=5x^2/4\r
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\n" ); document.write( "\n" ); document.write( "320=5x^2 ... 64=x^2 ... 8=x
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