 <translate> Cone curved surface area = πrl = 22/7 × 4 × 5 = 440/7 = 62 6/7
Slant height (l) = √r(power2)+h(power2) = √16+9 = √25 = 5
Thus, the answer is (C). <yor> Ilẹ́ àyíká tó yí ká ká kóńkó = πrl = 22/7 × 4 × 5 = 440/7 = 62 6/7 Slant iga (l) = √r(agbara2) + h(agbara2) = √16+9 = √25 = 5 Nítorí náà, ìdáhùn náà ni (C). 