Question 1In the given figure A, B and C are three points on a circle with centre O such that ∠BOC=30∘ and ∠AOB=60∘. If D is a point on the circle other than the arc ABC, find ∠ADC.

Question 1In the given figure A, B and C are three points on a circle

1.	Question 1In the given figure A, B and C are three points on a circle with centre O such that ∠BOC=30∘ and ∠AOB=60∘. If D is a point on the circle other than the arc ABC, find ∠ADC.
Answer» Question 1 In the given figure A, B and C are three points on a circle with centre O such that $∠ B O C = 30^{\circ}$ and $∠ A O B = 60^{\circ}$ . If D is a point on the circle other than the arc ABC, find $∠ A D C$ .