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A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?

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A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?
1). 78°
2). 96°
3). 102°
4). 108°

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1 answers

2 vote
Answered by on | Votes 2 |
option 4 is the answer

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