वृत्त की एक जीवा उसकी त्रिज्या के बराबर है। वृत्त के दीर्घ खंड पर किसी बिंदु पर इस जीवा द्वारा अंतरित कोण ज्ञात कीजिए।

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.

In a shipyard, two circular crane platforms have radii of 10 m and 6 m. They are placed with their centers 12 m apart, causing them to partially overlap. What is the length of the transverse common tangent that can be drawn between these two circles?