[填空题]
Peter has two water tanks with goldfish inside. t)/;zcjn)n jtruvw9o13dkm ( The first tank is in the shap1 * +(0z eh:w yyu4w z)umprekbt*opr*t** rune of a cylinder with diameter 4040 cm and height 45 cm. The secoyrw )e r+0z*b* p*yrpt1uu 4uzw(*e:mnkh*to nd tank is in the shape of a cuboid with length 40 cm, width 32 cm, and height 42 cm.
1.Calculate the volume, giving your answer in $cm^3$ correct to three significant figures,
1.of the first water tank; $cm^3$
2.of the second water tank. $cm^3$
Each goldfish requires $15000 cm^3$ of fresh water for a comfortable life.
2.Calculate the number of goldfish Peter can safely put into his tanks. goldfish
