What is the surface area of the prism? H = 4mm W = 3mm L = 15mm
The formula for the surface area of a rectangular prism is:
Surface area = 2lw + 2lh + 2wh
where l = length, w = width, and h = height.
Plugging in the values given,
Surface area = 2(15)(3) + 2(15)(4) + 2(3)(4)
Surface area = 90 + 120 + 24
Surface area = 234 mm²
Therefore, the surface area of the prism is 234 mm².