document.write( "Question 326373: each interior of regular polygon is 90 less than five times the measure of each exterior angle. how many sides does the polygon have? \n" ); document.write( "
Algebra.Com's Answer #233724 by vksarvepalli(154)\"\" \"About 
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let the value of each interior angle be x\r
\n" ); document.write( "\n" ); document.write( "then the value of each exterior angle will be 180-x\r
\n" ); document.write( "\n" ); document.write( "now it is given that \r
\n" ); document.write( "\n" ); document.write( " each interior angle is 90 less than five times the measure of each exterior angle.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "so x=5(180-x)-90\r
\n" ); document.write( "\n" ); document.write( " => x=900-5x-90
\n" ); document.write( " => 6x=900-90
\n" ); document.write( " => x=150-15
\n" ); document.write( " => x=135\r
\n" ); document.write( "\n" ); document.write( "now the value of the interior angle of a regular polygon of
\n" ); document.write( "n sides is given by \r
\n" ); document.write( "\n" ); document.write( " 180(n-2)/n degrees\r
\n" ); document.write( "\n" ); document.write( "so here 180(n-2)/n = 135\r
\n" ); document.write( "\n" ); document.write( " => 180n-360=135n
\n" ); document.write( " => 45n=360\r
\n" ); document.write( "\n" ); document.write( "so n=8\r
\n" ); document.write( "\n" ); document.write( "The no. of sides of the polygon = 8\r
\n" ); document.write( "\n" ); document.write( "so it is an octagon
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