document.write( "Question 133425: What regular polygon has an exterior angle measure of 18? \n" ); document.write( "
Algebra.Com's Answer #97603 by stanbon(75887)\"\" \"About 
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What regular polygon has an exterior angle measure of 18?
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\n" ); document.write( "The exterior angles always add up to 360 degrees.
\n" ); document.write( "Your problem:
\n" ); document.write( "(one ext. angle)*(number of sides) = 360
\n" ); document.write( "number of sides = 360/18 = 20
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\n" ); document.write( "\n" ); document.write( "The regular polygon has 20 sides.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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