A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 8 inches, a width of 3 inches, and a height of 4 1 2 inches. What is the surface area?

147 in2

Step-by-step explanation:

(Assuming the height is 4 1/2 inches = 4.5 inches)

We need to calculate the area of all six faces of the prism

Two faces have the sides 8 and 3, which area is 8*3 = 24 in2

two other faces have the sides 8 and 4.5, which area is 8*4.5 = 36 in2

the two last faces have the sides 3 and 4.5, which area is 3*4.5 = 13.5 in2

So, summing up all the areas, we have:

24 + 24 + 36 + 36 + 13.5 + 13.5 = 147 in2

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