Question

FIND THE AREA OF POLYGON TO THE NEAREST TENTH

- a regular octagon with a perimeter of 80 meters

HEEELLPPP

Answer 1

If it's perimeter is 80 meters, one side = 10 meters

Answer 2

Whats the answer ?

Answer 3

http://www.mathopenref.com/polygonregulararea.html

Answer 4

(s^2)N
------
4tan (180/n)

where
S is the length of any side
N is the number of sides
TAN is the tangent function calculated in degrees
(see Trigonometry Overview)
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