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The formula for finding the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l = length, w = width, and h = height.
Given:
l = 1.5 m
w = 3 m
h = 4 m
Using the formula:
Surface Area = 2(1.5)(3) + 2(1.5)(4) + 2(3)(4)
Surface Area = 2(4.5) + 2(6) + 2(12)
Surface Area = 9 + 12 + 24
Surface Area = 45 m²
Therefore, the surface area of the rectangular prism is 45 square meters.