tolong bantu jawab!pakek jalan nya

V kerucut
= ⅓ × π × r² × t
= ⅓ × 3,14 × 3 × 3 × 3
= 28,26 m³
= 28.260 liter

V kubus
= 28.260 liter - 1.260 liter
= 27.000 liter
= 27 m³

V kubus = r³
27 = r³
r = ³√27
r = 3 m ( B )