A cylindrical container with a bottom area of 3.14 square decimeters is filled with water. Now put a cone-shaped iron block with a bottom area of 12.56 square centimeters in the container, and the water surface rises by 1 cm. How high is the cone-shaped iron block? I don't understand this question. I will ask it all the time. Answer it for me until the end

A cylindrical container with a bottom area of 3.14 square decimeters is filled with water. Now put a cone-shaped iron block with a bottom area of 12.56 square centimeters in the container, and the water surface rises by 1 cm. How high is the cone-shaped iron block? I don't understand this question. I will ask it all the time. Answer it for me until the end

S column bottom = 3.14dm & # 178; = 314cm & # 178;
The water surface rises by 1cm
The volume of the rising 1cm water is the volume of the cone
｛ V cone = 314 × 1 = 314cm & ｛ 179;
And ∵ V cone = 1 / 3 × s bottom × height
Ψ height = 3 × V cone △ s bottom = 3 × 314 △ 12.56 = 75cm
Note: 1dm & # 179; = 1000cm & # 179;