Mensurationmedium · Past Paper
A conical flask has a radius r and height h. If the slant height is twice the radius, what is the ratio of CSA to base area?
A1:1
B2:1
C3:1
D4:1
✓ Correct Answer: B — 2:1
CSA = πrl = πr(2r) = 2πr². Base Area = πr². Ratio = 2:1.
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