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2411,52 = 1/3×3,14×r²×16
2411,52 = 50,24/3 × r²
2411,52×3÷50,24 = r²
r² = 144
r = √144 = 12cm
Volume kerucut = 1/3 luas alas x tinggi
2411,52 = 1/3 x 3,14 x r^2 x 16
2411,52 = 1/3 x 50,24 x r^2
2411,52 = 17,7466... x r^2
2411,52 / 17,746 = r^2
135, 9 = r^2
akar 135,9 = r
r = 11,657............
maaf kalau salah