Room size and dócor must be considered in relation to which secondary principle of design? Scale Tension Emphasis 1 Depth

The correct answer is: Scale.<br /><br />Scale refers to the size of elements in relation to one another and to the overall composition. In interior design, considering the scale of room size and décor is crucial to ensure that the elements work harmoniously together. For example, furniture and decor should be proportional to the room's dimensions to create a balanced and aesthetically pleasing environment.