Posted by **Johon** on Wednesday, May 2, 2012 at 8:33pm.

What is the total surface area of the inside and outside of a container in the shape of a rectangular prism with length of 5 meters, width of 3 meters, and height of 2.2 meters?

- Math -
**Reiny**, Wednesday, May 2, 2012 at 9:23pm
"rectangular prism" , fancy word for plain ol' box

Outside surface area

= 2(5x3) + 2(5x2.2) + 2(3x2.2)

= 68.2

Unless we know the thickness of the material used, we might just want to assume that the inside surface area is the same ??

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