document.write( "Question 1028812: Write a formula to find the number of sides n in a regular polygon given that the measure of one exterior angle is x°. \n" ); document.write( "
Algebra.Com's Answer #643854 by Theo(13342)\"\" \"About 
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the number of sides = 360 / x.\r
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\n" ); document.write( "\n" ); document.write( "for example, assume you have an octagon (8 sided figure).\r
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\n" ); document.write( "\n" ); document.write( "the external angle would be 360 / 8 = 45.\r
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\n" ); document.write( "\n" ); document.write( "therefore, the number of sides would be 360 / 45.\r
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\n" ); document.write( "\n" ); document.write( "this works for any polygon.\r
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\n" ); document.write( "\n" ); document.write( "for example:\r
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\n" ); document.write( "\n" ); document.write( "a pentagon has an internal angle of 108 degrees.\r
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\n" ); document.write( "\n" ); document.write( "the external angle is the supplement of that, which is equal to 72 degrees.\r
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\n" ); document.write( "\n" ); document.write( "360 / 72 = 5, which is the number of sides of the pentagon.\r
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