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thammaibinhyentuanh
2 năm trước
Trên cùng một nửa mặt phẳng có bờ chứa tia Ox, vẽ hai tia Oz và Oy sao cho xOz = 75 độ, xOy = 150 độ a) Hỏi tia nào nằm giữa hai tia còn lại? Vì sao? b) Tính zÔy. So sánh xÔz với zÔy. c) Tia Oz có phải là tia phân giác của xÔy không? Vì sao? Vẽ hình zùm em ạ
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