Too early! Am I doing this correctly?
I draw a circle 10ft diameter, around which I draw a square 10 x 10ft. I want to know the distance from any corner of the square to the nearest point of the circle.
So, Pythagorus tells me the hypotenuse across the square is 14.14 ft. The circle is 10 ft diameter, so the answer is half of 4.14 ft or 2.1 ft.
This is correct. I think :-)