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knowing that the outer wall is 921 feet and using A=(half)(apothem)(perimeter) you can determine the inside walls to be about 338 feet ... check my math though!

if that be the case, then the inside pentagon has an area of 4.5 acres (use trig and formula above) ... Google it and the Pentagon has an area of 29 acres ... 29+4.5 and you get 33.5 which is the are of a pentagon with side 921.

hope this helps.

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15y ago

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