Volume sebuah kerucut 3.786 cm jika jari alasnya 12 cm maka tinggi kerucut adalah..

Vol kerucut = 1/3 La x t
3786 = 1/3 x 3.14 x 12 x 12 x t
3786 = 3.14 x 48 x t
3786 = 150.72 t
t = 25,11 ( +-25)

v= 1/3 \pi r^{2) t
3786 = 1/3.22/7.12.12.t
t = 3786.3.7/22.144
t = 79506/3168
t= 25,1