1. The problem statement, all variables and given/known data A 5m long uniform beam AC with mass of 600kg is being lifted from the ring at B by two chains (AB, 3m long and CB, 4m long). Determine the tension in chain AB and CB when the beam is clear of the ground. 2. Relevant equations 3. The attempt at a solution I tried dividing it into 2 right angle triangles but doesnt the non-equal length sides mean it's not a right angle triangle? I'm struggling to find the angles because of this.