In a circle whose circumference is 60 units, a chord is drawn forming a segment whose sagitta [perpendicular length from chord to the circle] is 2 units. What is the length of the chord?

BM 85194 (Mesopotamian tablet), c. 2000 BCE

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The answer is: \(2\sqrt{\dfrac{120}{\pi}-4} \approx 11.7\) units