If O is the centre of a circle of radius r and AB is chord of the circle at a distance r/2 from O, then ∠BAO =
Let, O be the centre of the circle and r be the radius
Sin A = 
= 
= 
Sin A = 
Sin A = Sin 30°
A = 30°
Therefore,
∠BAO = ∠CAO = 30°
3
If O is the centre of a circle of radius r and AB is chord of the circle at a distance r/2 from O, then ∠BAO =
Let, O be the centre of the circle and r be the radius
Sin A =
=
=
Sin A =
Sin A = Sin 30°
A = 30°
Therefore,
∠BAO = ∠CAO = 30°