document.write( "Question 256410: What is the number of sides of a polygon if the measures of its interior angles have a sum of 1,800 degrees.n = ____? \n" ); document.write( "
Algebra.Com's Answer #188517 by drk(1908)\"\" \"About 
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The sum of the measures of interior angles has the formula:
\n" ); document.write( "\"D+=+180%28n-2%29\"
\n" ); document.write( "\"1800+=+180n+-+360\"
\n" ); document.write( "\"2160+=+180n\"
\n" ); document.write( "\"n+=+12\"
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