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What is the Surface Area Formula of a 3 Dimensional Rectangle?

I need this for a Larger Problem, but I forgot what this is. The problem is easy if I have this Formula. Can someone give it to me?

5 Answers

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  • 9 years ago
    Favorite Answer

    It is the sum of all its faces area , and since you have rectangle , there are 6 faces

    just simply compute them and add them up

    and if you want a formula , then lets assume the dimensions are X , Y and Z

    A= 2xy + 2xz + 2zy

  • Anonymous
    5 years ago

    Rectangle Surface Area Formula

  • 6 years ago

    This Site Might Help You.

    RE:

    What is the Surface Area Formula of a 3 Dimensional Rectangle?

    I need this for a Larger Problem, but I forgot what this is. The problem is easy if I have this Formula. Can someone give it to me?

    Source(s): surface area formula 3 dimensional rectangle: https://tr.im/eWTKN
  • 9 years ago

    Area of each rectangle is l x w.

    There are 3 different dimensions on a rectangular prism, so let's call those x, y, and z.

    The area of the top and bottom would be xy

    The area of the left and right sides would be yz

    The area of the front and back sides would be xz

    There are 2 of each of the above, so the final area would be 2 (xy + yz + xz).

  • None
    Lv 7
    9 years ago

    a 3 Dimensional Rectangle is called a prism. Think about it for two seconds and you'll see that if its dimensions are height h, width w and depth d, then its surface area is 2(hw + hd + wd)

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