alleryThe surface area of a solid is the sum of the areas of its what?
AEdges
BVertices
CDiagonals
DFaces
Answer & Solution
Correct answer: D. Faces
1. To find a solid's surface area, find each face's area.
2. Then add them.
3. Edges and vertices have no area.
_Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, Surface Area of Cube, Cuboid and Cylinder_
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