document.write( "Question 192615: What is the measurement of a regular polygon's interior angle if the figure has 18 sides? \n" ); document.write( "
Algebra.Com's Answer #144591 by yuendatlo(23)\"\" \"About 
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Formula for polygons:
\n" ); document.write( "(number of sides-2)(180/(number of sides).
\n" ); document.write( "So:
\n" ); document.write( "(18-2)*(180/18)
\n" ); document.write( "16*10
\n" ); document.write( "=160
\n" ); document.write( "∴each angle measures 160 degrees.
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