How much water is in this tank when 12 cm is length, 6 cm is width and 9 cm is how much is not full

To answer this question, we need to know the total volume of the tank and the volume of the water in the tank.

The total volume of the tank is:

V = length x width x height

V = 12 cm x 6 cm x 9 cm
V = 648 cubic cm

The volume of the water in the tank can be calculated by subtracting the volume of the space that is not full from the total volume:

V_water = V - (length x width x height of space that is not full)

V_not_full = 12 cm x 6 cm x 9 cm - 12 cm x 6 cm x 3 cm
V_not_full = 216 cubic cm

V_water = 648 cubic cm - 216 cubic cm
V_water = 432 cubic cm

Therefore, there is 432 cubic cm of water in the tank.

To determine the volume of water in the tank, we can use the formula for the volume of a rectangular prism:

Volume = Length * Width * Height

Given that the length is 12 cm, the width is 6 cm, and 9 cm is the height of how much is not full, we can plug in these values:

Volume = 12 cm * 6 cm * 9 cm

Simplifying the expression:

Volume = 648 cm³

Therefore, there are 648 cm³ of water in the tank when it is not full.