Two chords AB and AC of a circle subtends angles equal to 90∘ and 150∘ respectively at the centre. Find ∠BAC.

Two chords AB and AC of a circle subtends angles equal to 90∘ and 15

1.	Two chords AB and AC of a circle subtends angles equal to 90∘ and 150∘ respectively at the centre. Find ∠BAC.
Answer» Two chords $A B$ and $A C$ of a circle subtends angles equal to $90^{\circ}$ and $150^{\circ}$ respectively at the centre. Find $∠ B A C$ .