एक सीधी रेखा जो एक वृत्त को ठीक दो अलग-अलग बिंदुओं पर प्रतिच्छेद करती है, कहलाती है:

A chord of a circle is equal to its radius. Find the angle subtended by this chord at a point on the major segment of the circle.

If XA and XB are tangents drawn from an external point X to a circle such that XA = 8 cm and ∠AXB = 60°, find the length of the chord AB.