Hai tiếp tuyến tại A và B của đường tròn (O; R) cắt nhau tại M. Nếu MA = $R\sqrt{3}$ thì số đo góc ở tâm $\widehat{AOB}$ bằng:

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Một số câu hỏi khác có thể bạn quan tâm.

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