Monitors and best viewing distances

A general rule when deciding on monitor size is as follows: Audience size Monitor size Viewing distance 5 17” 2.1m (7.0ft) 10 21” 3.0m (9.0ft) 20 29” 3.5m (12.0ft) (Optimum viewing distance is usually calculated as 5 x the monitor screen size.) https://www.bestitdocuments.com/Samples