Quick geometry puzzle

Originally posted by royalchicken
Fiathahel's answer is the same as 3-2sqrt(2), or about 0.17, which is what I got. They can explain themselves though 🙂

hey, i have something with 3-2sqrt(2) as well...

Originally posted by Phlabibit
That small circle won't fit inside the square if you use the distance from the circle to the corner as the diameter.....

P

That's not what he does...