Hitunglah kadalaman suatu wadah yg berbentuk kerucut yg berisi 400 cm ^3 air, apabila diameter ny 24 cm

V = 1/3 (phi x r x r) x t
400 = 1/3 (3,14 x 12 x 12) x t
400 = 1/3 x 452,16 x t
400 = 150,72 x t
t = 400/140,72
t = 2,65