👉 In mathematics, a sub-rectangle is an area enclosed by two or more rectangles. For example, in a rectangle with sides of length 4 and 3, the sub-rectangle between these two sides (i.e., the region outside the rectangle but inside one of its corners) has dimensions of 12 (the side length of the rectangle minus 2 times the width). Similarly, a square is a special type of rectangle that has all four sides equal in length and can be divided

suborners