<PRE><B>Question 87340</B>
a dodecagon has 12 sides.
By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:
area=
S^2 N
___________  (the 4 represents side)
4tan(&amp;#960;/N)

S  is the length of any side
N  is the number of sides
&amp;#960;  is PI, approximately 3.142
TAN  is the tangent function calculated in radians 
The area= 176.92

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