In the figure, if AB = CD and ∠ABO=35∘.
Then, the value of ∠DCO=35∘
'O' is the centre of the circle
OB = OC (Radii of the same circle)
OA = OD (Radii of the same circle)
AB = CD (Given)
(By SSS congruence condition)
(Corresponding parts of congruent triangles)