document.write( "Question 1111733: Four angles of a Pentagon are 110° 99° 98° and 121°,calculate the fifth angles \n" ); document.write( "
Algebra.Com's Answer #726735 by josgarithmetic(39625)\"\" \"About 
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The pentagon can be cut into three triangles so the total sum of the measures of the interior angles is 3*180 degrees, or 540 degrees.\r
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\n" ); document.write( "\n" ); document.write( "Your unknown angle: \"540-110-99-98-121\"
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