Point P lies outside a circle with centre O. Tangents PA and PB are drawn to meet the circle at A and respectively. If ∠APB =800, then ∠OAB is is equal to:
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Q:
Point P lies outside a circle with centre O. Tangents PA and PB are drawn to meet the circle at A and respectively. If ∠APB =800, then ∠OAB is is equal to:
- 1700false
- 2true
400
- 3false
140
- 4false
350
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