AC is a chord of circle whose centre is at O. If B is any point on the arc AC and ∠OCA=200 , then the magnitude of ∠ABC is
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Q:
AC is a chord of circle whose centre is at O. If B is any point on the arc AC and ∠OCA=200 , then the magnitude of ∠ABC is
- 11000false
- 2false
400
- 3false
1300
- 4true
1100
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