Total surface area of a cuboid is found by adding the area of each:
AFace
BFold
CFringe
DFlange
Answer & Solution
Correct answer: A. Face
1. The solid is bounded by flat pieces.
2. Each contributes its own area.
3. To find the total surface area, find the area of each face and then add.
4. So the answer is each face.
_Source: NCERT Class 8 Mathematics, Ch 9 'Mensuration'_
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