Julia’s room is 4.5 m long, 4 m wide. What is the area of the walls of this room, it is known that the door and window

Julia’s room is 4.5 m long, 4 m wide. What is the area of the walls of this room, it is known that the door and window are 0.8 m * 2.2 m and 1.6 m * 1.4 m, respectively, and the height of the room is 2.8 m?

4 walls in total => 4 rectangles with sides {4.5; 2.8} {4; 2.8}. Wall area (Excluding window and door areas) = 2 * (4.5 * 2.8) + 2 * (4 * 2.8) = 47.6 Window and door areas = 0.8 * 2.2 and 1 , 6 * 1.4 => 1.76 and 2.24 Wall area = 47.6-1.76-2.24 = 43.6
Answer: 43.6