Find the surface area of a rectangular prism whose length is 18 millimeters, height is 10 millimeters, and width is 2 millimeters.(1 point) help pls
To find the surface area of a rectangular prism, you need to add up the areas of all six faces.
The formula for calculating the surface area of a rectangular prism is:
2lw + 2lh + 2wh
So in this case, where the length (l) is 18mm, the height (h) is 10mm, and the width (w) is 2mm:
2(18)(2) + 2(18)(10) + 2(2)(10)
= 72 + 360 + 40
= 472
Therefore, the surface area of the rectangular prism is 472 square millimeters.