Wot n' Intersection
Source: 2017 AIME I #6
March 8, 2017
2017 AIME IWot n
Problem Statement
A circle is circumscribed around an isosceles triangle whose two congruent angles have degree measure . Two points are chosen independently and uniformly at random on the circle, and a chord is drawn between them. The probability that the chord intersects the triangle is . Find the difference between the largest and smallest possible values of .