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lan479283
2 năm trước
Bài 4: Trên tia Ox lấy 2 điểm A và B sao cho OA=3cm, OB=7cm. a) Tính độ dài AB b) Vẽ tia Oy là tia đối của tia Ox. Trên tia Oy lấy điểm M sao cho OM=1cm. Chứng tỏ A là trung điểm của BM. Bài 5: Tìm 2 số tự nhiên liên tiếp có tích là 3080. Giúp mk vs nhé, mơn các bn nhiều.
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