ELI5: Explain Like I'm 5

Rabatment of the rectangle

Imagine you have a rectangle, which is like a flat shape with four straight sides. Now, imagine you want to cut off a little bit from each of the four corners. This is called "rabatment" of the rectangle.

When you cut off a little bit from each corner, the rectangle will become smaller and the sides will be shorter. This can make it easier to work with the rectangle or fit it into a specific space.

Think of it like taking a big sandwich and cutting off the crusts to make it a little smaller and easier to eat. Rabatment is like trimming the corners of the rectangle to make it a better fit for what you need it for.