¡Sorpréndeme!

1134.CBSE math Class VII -Understanding how to Solve Problems relating to Area of 4 walls of a Room

2015-07-10 18 Dailymotion

Area of 4 walls of a Room = (2*(L+b))*H. Whenever any question is given on finding the cost to paint room, areas of windows and doors is to be excluded from Area of 4 walls