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MathNet 2019-part-03 — 184 problems (EN–VI) Question 56

Math Olympiad Vault · MathNet 2019-part-03 — 184 problems (EN–VI)

Question 56

A circle is circumscribed around an isosceles triangle whose two base angles are equal to $x^\circ$. Two points are chosen independently and randomly on the circle, and a chord is drawn between them. The probability that the chord intersects the triangle is $\frac{14}{25}$. Find the sum of the largest and smallest possible value of $x$.