document.write( "Question 212711: a regular polygon has an interiaor angle of 170 degrees. how many sides does it have?
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Algebra.Com's Answer #160620 by HyperBrain(694)\"\" \"About 
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If the interior angle is 170 degrees, the exterior angle is 10 degrees.
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\n" ); document.write( "The exterior angle of a regular polygon with n sides has a measure of 360/n degrees.
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\n" ); document.write( "So, since the exterior angle of this polygon has measure 10 degrees, then it has 360/10=36 sides.
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