In the given figure, a tangent AC touches the circle (with centre at O) at point B. If ∠DBC = 30∘, then find the value of ∠BOD.
1
100∘
2
90∘
3
60∘
4
30∘
In the given figure, a tangent AC touches the circle (with centre at O) at point B. If ∠DBC = 30∘, then find the value of ∠BOD.