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प्रश्न
If O is the centre of the circle, find the value of x in the following figure
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उत्तर
We have
∠AOB = 60°
By degree measure theorem: reflex ∠AOB = 2∠OAC
60° = 2∠OAC
∠OAC = `60^circ/2 = 30^circ` [Angles opposite to equal radii]
Or x = 30°
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