document.write( "Question 481574: A qudrilateral has interor angles x,2x,4x and 5x.calculate x \n" ); document.write( "
Algebra.Com's Answer #329753 by Earlsdon(6294)\"\" \"About 
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The sum of the interior angles of any quadrilateral is 360 degrees, so...
\n" ); document.write( "\"x%2B2x%2B4x%2B5x+=+360\" Simplify.
\n" ); document.write( "\"12x+=+360\" Divide by 12.
\n" ); document.write( "\"x+=+30\" degrees.
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