diameter alas kerucut berukuran 10 cm dan tingginya 12 berapa volume kerucut

V = 1/3 la . t
V = 1/3.phi.r².t
V = 1/3 . 3,14 .5² . 12
V = 4 . 3,14 . 25
V = 314 cm3

1/3πr^2t
1/3×3,14×5×5×12
314cm3