document.write( "Question 525428: what is the number of sides of a polygon if the sum of all the interior angles equal 3780 degrees \n" ); document.write( "
Algebra.Com's Answer #348103 by oberobic(2304)\"\" \"About 
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For a polygon the sum of the interior angles = (n-2)*180
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\n" ); document.write( "(n-2)*180 = 3780
\n" ); document.write( "180n -360 = 3780
\n" ); document.write( "180n = 3420
\n" ); document.write( "n = 19
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\n" ); document.write( "Done.
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