Mensurationeasy · Past Paper
What is the total surface area of a cone of diameter 14 cm and slant height 13 cm?
A286 cm²
B440 cm²
C154 cm²
D308 cm²
✓ Correct Answer: B — 440 cm²
r = 7 cm. TSA = πr(r+l) = (22/7)*7(7+13) = 22 * 20 = 440 cm².
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