You can find the volume of an irregularly shaped solid object by completely submerging it in water and calculating the volume of water the object displaces. you completely submerge a solid object in a rectangular tank that has a base 40 centimeters by 30 centimeters and is filled with water to a depth of 20 centimeters. the object sinks to the bottom, and the water level goes up 0.25 centimeters. what is the volume, in cubic centimeters, of the object?