Rendering in scale? (kind of urgent)

It’s semester exam time, and one of the asks for it is to have pictures of my model on 1:100 and 1:200 scale on a A2 size paper. This is still required for a digital model, which is what I’m working on. The model in question is a three-floor apartment building along with the immediate surroundings, to give you an idea about the size.

What is the best way to go about this? My initial idea was to use a scale indicator (draw an one-meter-long line with an “1 meter” text) but that will disappear or be really small in scale and won’t show.

Do you guys have any advice on how to indicate scale?

On your layout you can create Text that references the Detail Scale. Since the paperspace is 1:1 you can add a Scale Bar below the text for someone to verify the scale with a ruler.