Final answer:
The correct distance to salute an Officer outdoors is at 6 paces. This protocol is part of military customs and is similar to distance estimation techniques used by hikers and scouts.
Step-by-step explanation:
When meeting an Officer outdoors, the correct distance to salute is 6 paces. A pace is roughly equivalent to a natural step, about 30 inches for an adult. It is a sign of respect and recognition of the officer's rank and position. In practical terms, this is close enough to ensure that the salute can be seen, but far enough away to allow time for the officer to return the salute. Estimating distance is an important skill in the military, similar to what hikers or scouts might use to estimate the distance to a distant landmark using various methods.