document.write( "Question 598042: A polygon has n sides.If one of its interior angles is 84° and the other interior angles are each equal to 156°,find the value of n. \n" ); document.write( "
Algebra.Com's Answer #378433 by Edwin McCravy(20063)\"\" \"About 
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document.write( "Sum of the n interior angles = 180°(n-2) \r\n" );
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document.write( "Sum of all but 1 of the n interior angles = 156°(n-1)\r\n" );
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document.write( "Sum of all n interior angles = 156°(n-1) + 84° \r\n" );
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document.write( "So\r\n" );
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document.write( "180°(n-2) = 156°(n-1) + 84°\r\n" );
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document.write( "Solve that and get 12 sides\r\n" );
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document.write( "Edwin
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