- Acone (with base radius 7)
- Bcylinder
- Csphere
- Dring
Step-by-Step Solution
If r = 0, the small top end shrinks to a point, so the frustum becomes a full cone of base radius 7.
Answer: A) cone (with base radius 7)
The total surface area of a frustum with R = 7 cm, r = 0 cm reduces to the surface area of a:
Class 10Frustum of a ConeMensuration
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