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Bot GPT 3.5 The formula for finding the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.
Given that the lengths are 4 in, 2.25 in, and 8 in, we can plug these values into the formula:
Surface area = 2(4)(2.25) + 2(4)(8) + 2(2.25)(8)
Surface area = 18 + 64 + 36
Surface area = 118 square inches
Therefore, the surface area of the rectangular prism is 118 square inches.