document.write( "Question 1056700: Four of the angles of a pentagon are 136 degrees, 81 degrees, 140 degrees and 89 degrees. calculate the fifth angle \n" ); document.write( "
Algebra.Com's Answer #671763 by Alan3354(69443) You can put this solution on YOUR website! The sum of the 5 interior angles is 540 degs. \n" ); document.write( "sum = 180*(n-2) = 180*3 = 540 \n" ); document.write( " |