One of the most important and exam oriented question from Chapter name- circles
Topic – Angle properties of circles
Chapter number- 15
In this question we have O is the centre of the circle.
Also Tangents to the circle at A and B meet at C. If ∠ACO = 30°,
Now we have to find (i) ∠BCO (ii) ∠AOR (iii) ∠APB
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Understanding ICSE Mathematics