Answer:
The answer is The Archimedes principle.
Step-by-step explanation:
The Archimedes principle would be used, which is the physical principle that says that a body totally or partially submerged in a resting fluid experiences an upward vertical thrust equal to the weight of the volume of fluid dislodged by the body, that is, a body totally or partially submerged in a static fluid, it will be pushed with a force equal to the weight of the volume of liquid displaced by said object. In this way, can be determine the volume of an object with an irregular shape.