document.write( "Question 270447: What is the measure of an interior angle of a regular 9-gon? \n" ); document.write( "
Algebra.Com's Answer #198144 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
What is the measure of an interior angle of a regular 9-gon?
\n" ); document.write( "-----------------------
\n" ); document.write( "Fact: The sum of the exterior angles is 360 degrees.
\n" ); document.write( "In a 9-gon each exterior angle is 360/9 = 40 degrees
\n" ); document.write( "Each corresponding interior angle is 180-40 = 140 degrees
\n" ); document.write( "======================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "
\n" );