Mensurationhard · Past Paper
The ratio of total surface area to curved surface area of a cone with radius r and slant height l is:
A(l+r)/l
Bl/(l+r)
Cr/l
D(l+r)/r
✓ Correct Answer: A — (l+r)/l
TSA / CSA = πr(l+r) / πrl = (l+r)/l.
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