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Slicing a region the other way is described in the text as considering:
ADiagonal sectors
BCircular annuli
CTriangular wedges
DHorizontal strips
Answer & Solution
Correct answer: D. Horizontal strips
1. Vertical strips are the first approach shown.
2. An alternative appears in the same worked examples.
3. It considers horizontal strips.
4. So the answer is horizontal strips.
_Source: NCERT Class 12 Mathematics, Ch 8 'Application of Integrals'_
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