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The surface area of a rectangular prism is calculated using the formula:
Surface Area = 2(lw + lh + wh)
Given measures:
l = 5 mm
w = 4.5 mm
h = 1 mm
Plugging the values into the formula:
Surface Area = 2(5*4.5 + 5*1 + 4.5*1)
Surface Area = 2(22.5 + 5 + 4.5)
Surface Area = 2(32)
Surface Area = 64 mm²
Therefore, the surface area of the rectangular prism is 64 mm².