Archimedes principle of the force of upthrust = weight of water displaced by the body immersed , but is this law independent of the shape of this body. If we use the idea that the upthrust = P*A on the lower side - P*A on the upper side , if we use it on a rectangle or a square , the only change here is the pressure. But what if we used a body like trapezium (where the area also changes) , the smaller base is facing down, i made some calculations using Pressure * area to figure out if it will float or sink , and theoretically it will sink , i meant to do this experiment in real life , but couldn't find any trapeziums. So can anybody help me here? will it float? will it sink? and why (specially if the answer is that it will float )?