1.长方体的体积 =长×宽×高,V =abh
2.正方体的体积=棱长×棱长×棱长,V=a×a×a= a³
3.圆柱的体积=底面积×高,V=Sh,V=πr²h
4.圆锥的体积=底面积×高÷3,V=Sh÷3=πr²h÷3