Distance between a point and a region (not center of region)

[colinjames12]

Is it possible to get the distance of a point and region?

 

[maxou]

It's hard to get since region aren't a circle. If you come from the left or top left, or bottom, you may don't have the same distance...
That's why I'd say, use the center of region. Else, why do you need the distance between a point AND a region? o.0

 

[colinjames12]

My problem is a bit complicated but don't worry I already figured it out using trigonometry sine. I'm not gonna explain it any more cause I'm not that good in english.