alleryThe curved surface area of a hemisphere is what fraction of the sphere's?
AWhole
BHalf
CThird
DFifth
Answer & Solution
Correct answer: B. Half
1. A hemisphere is half the sphere.
2. Its curved surface is half the sphere's surface.
3. So the curved surface area is half of 4 pi r squared.
_Source: syllabus Mathematics, Chapter 13, Surface Areas and Volumes._
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