Find the supplement of 11(pi)/13

Question

 is it 11(pi)/26, 5(pi)/13, not possible, 129pi)/13, or 2(pi)/13

Answer 1

c = compliment of 11π/13

 

c + 11π/13 = π          Subtract 11π/13 form both sides

c = 13π/13 - 11π/13

c = 2π/13