alleryA cone ornament has base radius 3 cm and slant height 5 cm. Give total area as a multiple of π.
A15π cm²
B8π cm²
C9π cm²
D24π cm²
Answer & Solution
Correct answer: D. 24π cm²
Total area is πr(l+r) = π × 3 × (5+3) = 24π cm².
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