document.write( "Question 11022: What is the interior degrees of a 20-gon? \n" ); document.write( "
Algebra.Com's Answer #5781 by longjonsilver(2297)![]() ![]() You can put this solution on YOUR website! well, a 20-sided polygon can be split into 18 triangles.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so, 18 triangles have a total of 18*180 --> 3240degrees.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, as the polygon is regular ie all angles are the same, there are 20 of them, so each angle is 3240/20 --> 162.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I am not sure what you want, so you have 2 answers:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1. sum of interior angles = 3240 \n" ); document.write( "2. each angle = 162\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "jon. \n" ); document.write( " \n" ); document.write( " |