Two chords AB and AC of a circle subtends angles equal to 80∘ and 140∘ respectively at the centre. Find ∠BAC.

Two chords AB and AC of a circle subtends angles equal to 80∘ and 14

1.	Two chords AB and AC of a circle subtends angles equal to 80∘ and 140∘ respectively at the centre. Find ∠BAC.
Answer» Two chords $A B$ and $A C$ of a circle subtends angles equal to $80^{\circ}$ and $140^{\circ}$ respectively at the centre. Find $∠ B A C$ .