You use integration. That means you divide it into lots of smaller pieces; for example into thin, parallel slabs. For each slab you calculate the area, and multiply it by the thickness.If the slab has an irregular area, you may need to divide it into many thin strips - so you would basically do a double integration.
The answer, for a moderately sized solid object is by the method of liquid displacement.
Find a liquid in which the object is not soluble. Partially fill a graduated container with that fluid and record the level of the liquid, V0. Then gently introduce the object into the container until it is fully submerged. Shake the container a bit so that any air bubbles on the surface of the object are disloded. Record the level of the liquid, V1. Then the volume of the object is V1 - V0 units.
To measure volume of large irregular shaped objects you need a displacement can
water displacement
Displacement method.... Is the method to find volume of an irregular object
Make a mold of the object and then fill the mold with water and measure the volume of the water.
Measure the volume of the object which is same as the volume of the displaced liquid in which that sinks. And measure the mass of the same object from a weighing machine. then use density = mass/volume
you put the shape into sections and find there volumes and add your answers together
1. fill the container with water (make sure you write down what you filled it to) 2. Place object into the container 3. Calulate how much the water rose 4. Find the difference of the two numbers (that will be you volume of the irregular shaped object) 5. All finished!!!
...V1xV2....
If the body is a solid not soluble in water then we can keep it immersed in a measurable jar. Just noting down the level of water raised and getting the difference in the level with the initial one, we can get the volume of the irregular shaped object.
Volume is the amount of cubic centimeters in an object. To find the volume of a regular shaped object multiply length x width x height. To find an irregular shaped objects volume put water in a container and measure the amount. Place the object in the water and measure the new volume. Subtract the old volume from the new volume and that's your answer. You would write as x cm3. Weight is gravity's pull on an object
It is a method called displacement. Displacement is a method that many scientists use. First you put a certain amount of water in a container (test tube, beaker). Second you Measure how many milliliters of water you put into it. Next you Add your irregular object into the water. Then you measure how many milliliters the water level rose. Then you subtract your second measurement with the irregular shaped object in it by your first measurement without the object in it and it will give you the volume of your irregular shape object.
You use disfigurasation