Q3 of 100 Page 17

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°

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