If O is the centre of the circle. Prove that : < x + < y = < z
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Hello snigdha Originally Posted by snigdha If O is the centre of the circle. Prove that : < x + < y = < z I have added the letters A, B and C to your diagram - see the attached. Then (angle at centre) (angles on a straight line) (angle sum of quadrilateral ACBP) Grandad
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