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lamvophuocduy0208
2 năm trước
Giải giúp mik hai câu này 1: Độ dài cung 90độ của đường tròn (O,căn2 cm) là ??? 2: Cho tâm giác MNP cân tại M có cạnh bên bằng 8 và góc ở đỉnh bằng 120độ khi đó bán kính đường tròn ngoại tiếp tam giác MNP bằng ???
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