Fill a cylindrical bucket with inner diameter of 20cm and height of HCM with water and pour it into a cuboid water tank. If water only accounts for half of the water tank, the volume of the water tank is Cubic centimeter (expressed by the algebraic formula containing H, retaining π PAI)
Volume of cylinder = bottom area × height = π R ^ 2 * h
The inner diameter is 20 cm and the radius is 20 / 2 = 10 cm
2 × 10 × 10 × π × H = 200 π h cubic centimeter
A: the volume of the water tank is 200 π h cubic centimeter
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