38*26,6*53=44516.4
mm是毫米,dm是分米380mm266mm530mm要换成dm,所以是3.8dm2.66dm5.3mm体积3.8*2.66*5.3=53.57表面积2*(3.8*2.66+3.8*5.3+2.66*5.3)=88.69