The easiest way is to place the object in a graduated beaker of water, and see how much the water rises when you put it in.
Archimedes Principle says that the volume of the object is the same as the water displaced from the beaker.
The volume of an irregularly shaped solid can be measured by placing the solid in a known quantity of water in a container with measurement markings. Take the new volume and find the difference between this and the old volume. This is the volume of your irregularly shaped solid.
You can find the volume of an irregularly shaped object, like a rock, by using the water displacement method. Submerge the object in a known volume of water in a container. Measure the increase in water level, which equals the volume of the rock.
When you are trying to find the volume of an irregularly shaped object.
break it up into pieces you know how to find the volume of
Take an amount of water of which you know the volume. Drop the object in the water. Find the difference
It is the displacement method.
To find the volume of a rectangular prism, multiply the base, width, and height. If the prism is irregularly shaped, multiply the base and the height.
To find the density of an irregularly shaped object like a rock, you can use the water displacement method. First, measure the volume of water displaced when the rock is submerged in a known volume of water. Then, divide the mass of the rock by the volume of water displaced to calculate the density.
To find the volume of an irregularly shaped object that would dissolve in water, you can use the water displacement method. Fill a known volume of water in a container, note the initial water level, then submerge the object in the water and measure the new water level. The difference in water levels is the volume of the object.
Once easy way is displacement. You can place it in liquid and see how much liquid it displaces. This will be the volume.
Get a sample of the metal. Use a scale to find its mass. If it is shape is that of a rectangular solid (box) measure length, width, and height and multiply to find volume. If it is irregularly shaped, use the water displacement method to find its volume. Divide the mass by the volume to get the density.
A common tool used to measure the volume of solids is a graduated cylinder or a beaker for regularly shaped solids. For irregularly shaped solids, displacement method using a measuring cylinder and water can be used to find the volume.