3.14×4×6=75.36(平方厘米); 3.14×(4÷2) 2 ×6 =3.14×4×6 =12.56×6 =75.36(立方厘米) 答:它的侧面积是75.36平方厘米,体积是75.36立方厘米; 故答案为:75.36,75.36.