Answer :
To get the lateral surface area, dana will subtract the two base area from the total surface area.
Total surface area of rectangular prism
The total surface area of a rectangular prism is the sum of the areas of all of the faces or surfaces that enclose the solid. Therefore,
- 2lw + 2wh + 2lh
where
l = length
w = width
h = height
Lateral surface area of a rectangular prism
The lateral surface area of a rectangular prism is the surface area of the solid without the bases.
Therefore,
- LA = 2 ( l + w ) h
Total surface area = Lateral surface area + 2 (Base Area)
Total surface area = 2 (l + w) h + 2 (l x w) = 2lh + 2wh + 2lw
Therefore,
Lateral surface area = Total surface area - 2 (Base Area)
To get the lateral surface area, dana will subtract the two base area from the total surface area.
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