In 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.[2 marks][Equal Chords Subtending Angles at the Center]

In the given figure A, B and C are three points on a circle with centr

1.	In 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.[2 marks][Equal Chords Subtending Angles at the Center]
Answer» 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 $∠ A D C$ . [2 marks] [Equal Chords Subtending Angles at the Center]