SOLUTION: Hello. i'm very confused about this problem. I just can't seem to understand it. here it is: Find the area of a octagon if the perimeter is 42 thank you very much who ever answer

Question 350718: Hello. i'm very confused about this problem. I just can't seem to understand it. here it is:
Find the area of a octagon if the perimeter is 42
thank you very much who ever answers it you have been a great help.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
An octagon has 8 sides.
If it's a regular octagon, each side = 42/8 = 5.25
---------
The area of ANY regular polygon with n sides of length s is:

Area = 55.125*cot(22.5)

=~ 133.08 sq units

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