Irregular 3-dimensional shapes.
Chat with our AI personalities
Adding depth makes a 3D object from a 2D shape.
They have length, width and depth
2d shapes only have length and width, while 3d shapes have length, width and depth.
A cube is, by definition, regular. Do you mean a cuboid? The volume of a cuboid is length × width × height or length × width × depth (where depth and height are the length in the third dimension). For irregular three dimensional shapes, divide them up into smaller shapes for which the volume can be calculated and add them together. ----------------------------------------------------------------------------------------- For real world irregular three dimensional object it is impractical to try to split the object up into smaller shapes. In this case get a cuboid of water (or other liquid) in a tank, measure its volume (as above), submerge the object completely in the liquid and re-measure the volume of the liquid (the tank should have excess capacity greater than the volume of the object so that no liquid spills): the volume of the object is the difference between the two measurements of the volume of liquid.
3 dimensional shapes have breadth, width and depth whereas 2 dimensional shapes have only breadth and width