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Which solid is not among the basic ones met earlier?
ACylinder
BSphere
CFrustum
DCuboid
Answer & Solution
Correct answer: C. Frustum
1. Cuboid, cone, cylinder and sphere are the familiar solids.
2. The frustum is built by cutting one of those.
3. So it is not itself one of the basic solids.
_Source: NCERT Class 10 Mathematics, Chapter 13, Surface Areas and Volumes._
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