alleryStrips used to find an area may be vertical or:
ACircular
BSpherical
CHorizontal
DTriangular
Answer & Solution
Correct answer: C. Horizontal
1. A region can be sliced in more than one direction.
2. Sometimes slicing the other way is simpler.
3. So strips may be horizontal instead of vertical.
4. The answer is horizontal.
_Source: syllabus Mathematics, Ch 8 'Application of Integrals'_
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