document.write( "Question 256574: how do you find the measurements of the angles in a 20-gon? My daughter's math book is very unspecific \n" ); document.write( "
Algebra.Com's Answer #188744 by scott8148(6628)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "for ANY regular polygon:\r
\n" ); document.write( "\n" ); document.write( "___ the sum of the EXTERIOR angles is 360º\r
\n" ); document.write( "\n" ); document.write( "___ interior and exterior angles are supplementary (add to 180º)\r
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\n" ); document.write( "\n" ); document.write( "in this case,\r
\n" ); document.write( "\n" ); document.write( "___ there are 20 exterior angles, so each one is 18º (360 / 20)\r
\n" ); document.write( "\n" ); document.write( "___ the interior angles are supplements of 18º, so each one is 162º (180 - 18)
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