Arthur D. answered • 04/25/15
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a rectangular prism is made up of 6 rectangles, top and bottom, left and right, front and back
the top and bottom rectangles have the same area
the left and right rectangles have the same area
the front and back rectangles have the same area
A=7*4=28 square meters (2 of these)
A=4*9=36 square meters (2 of these)
A=7*9=63 square meters (2 of these)
2*28+2*36+2*63=56+72+126=254 square meters
