Area of Combined Figures

Core concept

For example, an L-shaped room can be divided into two rectangles: calculate each rectangle's area separately using length×breadth, then add the two areas together for the total floor area. Alternatively, for shapes with a piece removed (like a square with a circular hole), the area is found by calculating the larger shape's area and then subtracting the area of the removed piece — the same divide-and-conquer principle applied in reverse.