How to Measure Volume

Some people do not know how to find the volume of an object. Well, for a rectangular object you just find the length, width. and height of the object, and then multiply. But for an irregularly shaped object, the so called "formula" is a bit different. I believe the easiest way to find the volume is to drop the object in any kind of tube, (beaker, flask, graduated cylinder) that is filled with water. Beforehand, you must know the volume of the water originally. After that, once you have dropped the object inside the water, you measure the measurement of the water. Depending on the size of the object, there is definitely a difference between the two measurements that were taken.