I just hope you had a good ruler, and not a printed ruler from your home printer. If this is aprinted ruler, I am not sure which print made the mistake, as in home printers it is very difficult to get things at exact measurements.
It’s not “very difficult”. You just cognizant of the scale your ruler is drawn on and scale you are printing it, i.e. not have printer auto scale it for example.
I just hope you had a good ruler, and not a printed ruler from your home printer. If this is aprinted ruler, I am not sure which print made the mistake, as in home printers it is very difficult to get things at exact measurements.
I wondered the same thing.
It’s not “very difficult”. You just cognizant of the scale your ruler is drawn on and scale you are printing it, i.e. not have printer auto scale it for example.