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does anyone remember how to calculate the cubic area of an octagon?

i'm trying to design my greenhouse and want to know how many plants i could fit in it.

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sherry729

Asked by sherry729 at 9:53 PM on Jul. 10, 2008 in Home & Garden

Level 1 (0 Credits)
Answers (2)
  • Area of an Octagon: A = S (squared) - B (squared) where S is the overall width of the octagon and B is the length of one side.
    Other ways can be found here:
    http://en.wikipedia.org/wiki/Octagon
    kaycee14

    Answer by kaycee14 at 10:15 PM on Jul. 10, 2008

  • 1) An octagon is a square with the 4 corners removed
    2) Calculate the area of the square that the original octagon fit in
    3) Increase all sides by 6
    4) Remove the corners from the larger square, subtracting the area for these 4 triangles from the square to get your answer.
    vbruno

    Answer by vbruno at 11:39 PM on Jul. 10, 2008

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