Credit for this problem goes to MindYourDecisions. Thanks!

## Square Chords

Two points are picked at random uniformly from the border of a square with side length L.

What is the probability the distance D between the points is larger than L?

Credit for this problem goes to MindYourDecisions. Thanks!

Two points are picked at random uniformly from the border of a square with side length L.

What is the probability the distance D between the points is larger than L?