Answer:
Step-by-step explanation:
we know that
The perimeter of a square is equal to
where
b is the length side of the square
In this problem we have
so
solve for
Divided by both sides
3.0 Miles per hour
https://www.countcalculate.com/cars-and-speed/average-speed/result?r=jfqffaktat
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<em>Hope this helps! <3</em>