Fill in the blank: Type your answer in the box, select the appropriate units and then click "submit."

What is the area of the regular octagon given below? If necessary, round your answer to two decimal places.
http://assets.openstudy.com/updates/attachments/51f80a1ee4b05639fef0c672-%25CF%259F%25C6%2599%25CA%2580%25C9%25A9%25D7%259F%25D7%259F%25CF%2583x-1375210070566-2310c81af7e348499dea081c145a9276.gif

Question

Fill in the blank: Type your answer in the box, select the appropriate units and then click "submit."

What is the area of the regular octagon given below? If necessary, round your answer to two decimal places.
http://assets.openstudy.com/updates/attachments/51f80a1ee4b05639fef0c672-%25CF%259F%25C6%2599%25CA%2580%25C9%25A9%25D7%259F%25D7%259F%25CF%2583x-1375210070566-2310c81af7e348499dea081c145a9276.gif

anonymous · Answer

Area = (area of big square) - 4*(area of right triangle)
Do you get it?

anonymous · Answer

The area of big square equals (20,52*2)^2.

anonymous · Answer

I'm not following..

anonymous · Answer

can you just show the settup and solve it so I know for next time?

ankit042 · Answer

read this http://www.dummies.com/how-to/content/how-to-calculate-the-area-of-a-regular-octagon.html