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quochuy.07052001
2 năm trước
Câu 1. Cho tứ giác ABCD nội tiếp (O).Số đo bằng độ của các cung AB,BC,CD,DA lần lượt là x+16,2x+18,x+12,2x+14.Khi đó góc ADB bằng bao nhiêu? A.50 độ B.33 độ C.66 độ D.70 độ Câu 2. Tích của hai só tự nhiên liên tiếp hơn tổng của hai số tự nhiên liên tiếp là 155.Số tự nhiên lớn hơn là bao nhiêu A.11 B.12 C.13 D.14
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