A square prism is 2 decimeter long, pour 5 decimeters of water, and then put 8 centimeters of rectangular iron block in the water. At this time, the water depth is 15 centimeters, and the bottom area of iron block is determined. A square prism is 2 decimeter long, pour 5 decimeters of water, and then put 8 centimeters of rectangular iron block in the water. At this time, the water depth is 15 centimeters, so as to find the area of iron block bottom.

A square prism is 2 decimeter long, pour 5 decimeters of water, and then put 8 centimeters of rectangular iron block in the water. At this time, the water depth is 15 centimeters, and the bottom area of iron block is determined. A square prism is 2 decimeter long, pour 5 decimeters of water, and then put 8 centimeters of rectangular iron block in the water. At this time, the water depth is 15 centimeters, so as to find the area of iron block bottom.

Square bottom area is 4 decimeters
5 Cm3 water depth in cube:5/4=1.25 cm =12.5 cm
The water depth increases by 15-12.5=2.5cm after the 8cm rectangular iron block is placed.
Volume of iron block =20X20X2.5=1000 cc
Area of iron block bottom =1000/8=125 cm2

Square bottom area is 4 decimeters
5 Cm3 water depth in cube:5/4=1.25 cm =12.5 cm
The water depth increases by 15-12.5=2.5cm after the 8cm rectangular iron block is put in.
Volume of iron block =20X20X2.5=1000 cc
Area of iron block bottom =1000/8=125 cm2

Place an 8 cm square piece of iron in a 2 decimetre long,1.6 decimetre wide rectangular container containing water How many centimeters will the water rise if the iron is completely submerged and the water does not overflow Place an 8 cm square iron block in a 2 decimetre long,1.6 decimetre wide rectangular container containing water How many centimeters will the water rise if the iron is completely submerged and the water does not overflow

2 Decimeters long =20 cm,1.6 decimeters wide =16 cm
The water surface will rise =8×8×8/(20×16)=1.6 cm

Length =20 cm, width =16 cm
The water surface will rise =8×8×8/(20×16)=1.6 cm