As long as you can put it into some liquid, very easily. Just measure the volume of the liquid before and after you put the shape in.
No not really
Of course, Squares and Rectangles are 2D shapes, therefore they don't have volumes. However, if you are asking what the volume of a cube is, the equation is; Width X Length X Height = Volume of a cube (or cuboid) Hope that -rant removed for idiocy-
measure it in a graduated cylinder
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Finding the volume of many odd shapes is only possible with integral calculus. Google " volume of revolution. "
A trapezium is a 2D shape; volume it an attribute of 3D shapes. The volume of all trapezia is 0.
Put the object in a bath of water and see what volume of water is displaced.
To find the area, first divide the shape into regular, simple shapes. Then use formulas to find the area of the smaller, regular shapes. Lastly, add up all the smaller areas to find the area of the original shape.
There are formulas for regular shapes. Not all shapes have formulas; for these you can fill them with liquid and measure or weigh the contents.
Solids have definite shapes and definite volume.
You can't. Volume is only for 3 dimensional shapes. You won't find a way of using volume in any kind of 2 dimensional stuff.
Well in general, you can find volume if you have the relevant dimensions. It's much easier for simple shapes. For complicated shapes, it's easier to use other methods. Immersing an irregularly shaped object in a graduated cylinder is a very useful method of finding volume.
You get the Volume by using formulas. There is usually a specific formula to find the volume of each shape. Some irregular shapes may not have a formula.
Try to break it down to regular shapes/objects.
There are many ways to find the volume of irregular shapes, but the most commonly used method is Water Displacement.
A good strategy if you can't use calculus is to break them into components that are shapes you can find the volume for. For example, a dumbbell is basically three cylinders - two on the ends and one central bar. You can find the volume of each and add them together to find the total volume.
water