1先求出正方体水箱的体积:5x5x5=125dm³2再求出长方体的底面积:8x25=200dm²3用正方体水箱的体积除以长方体的底面积就等于水深:125÷200=0.625=八分之五
1.先求出正方体水箱的体积:5x5x5=125dm³2.再求出长方体的底面积:8x25=200dm²3.用正方体水箱的体积除以长方体的底面积就等于水深:125÷200=0.625=八分之五