document.write( "Question 1017819: An exterior angle of a regular polygon measures 18 degrees. How many sides does the polygon have? If the length of the side of the polygon is 2 units, what is the area of the polygon? There are 20 sides just need help on the last part. \n" ); document.write( "

Algebra.Com's Answer #634061 by Alan3354(69443) $\"\"$ $\"About$

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An exterior angle of a regular polygon measures 18 degrees. How many sides does the polygon have? If the length of the side of the polygon is 2 units, what is the area of the polygon? There are 20 sides just need help on the last part.
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\n" ); document.write( "360/18 = 20 sides.
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\n" ); document.write( " $\"Area+=+ns%5E2%2Acot%28180%2Fn%29%2F4\"$ where n = # of side and s = side length
\n" ); document.write( " $\"Area+=+20%2A4%2Acot%289%29%2F4\"$
\n" ); document.write( "=~ 126.275 sq units\r
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