document.write( "Question 1063188: a regular polygon of n-sides is such that each interior angle is 120 degree greatet than the exterior angles. find
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Algebra.Com's Answer #678226 by ikleyn(52802) $\"\"$ $\"About$

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\n" ); document.write( "a regular polygon of n-sides is such that each interior angle is 120 degree greater than the exterior angles. find
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document.write( "A + B = 180,\r\n" );
document.write( "A - B = 120\r\n" );
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document.write( "=====> A = 150 degs (interior angle);  B = 30 degs (exterior angle).\r\n" );
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document.write( "====>  n =  = 12.\r\n" );
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document.write( "The sum of all interior angle of a polygon is 360 degs always (in all regular cases).\r\n" );
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