document.write( "Question 1133816: solve a regular polygon of (2x+1) sides has 140 as the size of each interior angle, find x. \n" ); document.write( "
Algebra.Com's Answer #751066 by Alan3354(69443)\"\" \"About 
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solve a regular polygon of (2x+1) sides has 140 as the size of each interior angle, find x.
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\n" ); document.write( "Ext angles = 40 degs
\n" ); document.write( "360/40 = 9 sides
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