Find the equations of straight lines which pass through the intersection of lines x-2y-5=0 and 7x+y=50 and divide the circumference of the circle x^2+y^2=100 into two arcs whose lengths are in ratio 2:1.
Find the equations of straight lines which pass through the intersection of lines x-2y-5=0 and 7x+y=50 and divide the circumference of the circle x^2+y^2=100 into two arcs whose lengths are in ratio 2:1.