document.write( "Question 1158275: Work out the size of an exterior and an interior angle of a regular 18-sided polygon.\r
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Algebra.Com's Answer #781188 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Work out the size of an exterior and an interior angle of a regular 18-sided polygon. \n" ); document.write( "=========== \n" ); document.write( "Find the Ext angles first: \n" ); document.write( "360/18 = 20 degs \n" ); document.write( "====== \n" ); document.write( "Int = 180 - 20 = 160 degs \n" ); document.write( " \n" ); document.write( " |