MCQ
The total surface area of solid opened at the top in the given figure is
- ✓$2 \pi r(h+r)$
- B$\pi r(2 h+r)$
- C$2 \pi h(h+r)$
- DNone of these
✓
Answer
Correct option: A.
$2 \pi r(h+r)$
(a) : Total surface area of solid = Curved surface area of cylinder + Curved surface area of hemisphere $=2 \pi r h+2 \pi r^2=2 \pi r(h+r)$
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