alleryThe curved surface area of a hemisphere of radius r is:
A4 pi r squared
Bpi r squared
C2 pi r squared
D3 pi r squared
Answer & Solution
Correct answer: C. 2 pi r squared
1. Half of the sphere's 4 pi r squared is taken.
2. That halving gives the curved part only.
3. It is 2 pi r squared.
_Source: syllabus Mathematics, Chapter 13, Surface Areas and Volumes._
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