Question 852153: I need to find the surface area for a prism. The height is 18.5, the width is 12 and the length is 6
Answer by josh_jordan(263)   (Show Source):
You can put this solution on YOUR website! The formula for the surface area of a rectangular prism is 2ab + 2bc + 2ac = Surface Area.
We have 3 values: 18.5, 12, and 6. We can assign each of these values a letter. So, lets use a=6, b=18.5, and c=12. Now, all we need to do is plug the values for each letter into our equation:
2(6)(18.5) + 2(18.5)(12) + 2(6)(12) = Surface Area. ----->
222 + 444 + 144 = Surface Area ----->
810 = Surface Area
So, the surface area of your prism is 810.
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