document.write( "Question 549024: The interior and exterior angle of a polygon is 2880 how many sides does it have? \n" ); document.write( "
Algebra.Com's Answer #357432 by Alan3354(69443)\"\" \"About 
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The interior and exterior angle of a polygon is 2880 how many sides does it have?
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\n" ); document.write( "If you mean the sum of Int and Ext:
\n" ); document.write( "The Ext is always 360 degs
\n" ); document.write( "--> sum of Int angles = 2520
\n" ); document.write( "2520/360 = 7
\n" ); document.write( "7 + 2 --> 9 sides\r
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