To find the surface area of a rectangular prism, you will need to calculate the areas of all six faces and then add them together.
The formula to calculate the surface area of a rectangular prism is:
Surface Area = 2lw + 2lh + 2wh
Where:
l = length of the rectangular prism
w = width of the rectangular prism
h = height of the rectangular prism
Once you have the values for l, w, and h, you can plug them into the formula to find the surface area of the rectangular prism.
For example, if the length of the rectangular prism is 5 cm, the width is 3 cm, and the height is 4 cm, the calculations would look like this:
Surface Area = 2(5)(3) + 2(5)(4) +2(3)(4)
Surface Area = 30 + 40 + 24
Surface Area = 94 square cm
Therefore, the surface area of a rectangular prism with a length of 5 cm, a width of 3 cm, and a height of 4 cm is 94 square cm.
Connexus surface area of rectangular prisms QuickChek
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