Answer:
400 m^3
Step-by-step explanation:
volume of cylinder = area of the base * height
volume of cylinder = 100 m^2 * 12 m
volume of cylinder = 1200 m^3
The cylinder is 1/3 filled with water, so the volume of the water is 1/3 the volume of the cylinder.
volume of water = 1/3 * 1200 m^3
volume of water = 400 m^3
