Calculate the perimeter of the walls, if the length of the room is 4 m, the width is 3 m. The height of the ceiling is 3 m.

We define the desired unsettled perimeter of the walls of the room using the conditional variable “Y”.

At the second step, taking into account the conditions of this problem and applying the perimeter formula, we obtain the following equation: Y = 2 x (3 + 3 + 3 + 3) + 2 x (4 + 4 + 3 + 3).

When we solve this equation, we will have the following Y = 12 x 2 + 14 x 2 = 24 + 28 = 52 meters.

Answer: the desired perimeter of the room walls is 52 meters.