What is the surface area of the prism?
L 15mm, H 4mm, W 3mm
To find the surface area of a rectangular prism, you need to find the area of each of the six faces and add them together.
The formula for the surface area of a rectangular prism is:
2lw + 2lh + 2wh
where l = length, w = width, and h = height.
Given that the length (l) is 15mm, height (h) is 4mm, and width (w) is 3mm, we can plug these values into the formula:
Surface Area = 2lw + 2lh + 2wh
Surface Area = 2(15)(3) + 2(15)(4) + 2(4)(3)
Surface Area = 90 + 120 + 24
Surface Area = 234 mm²
Therefore, the surface area of the rectangular prism is 234 mm².