观察下方方格纸。 方格纸中的哪条线段垂直于 BC?

它不会直接告诉你答案,而是问你卡在哪一步看看 AI 是怎么陪你一步步弄懂这道题的
完整解法
4
1. Determine the horizontal and vertical changes for line BC.
From point to point , the line moves units to the right and units down.
2. Determine the required changes for a perpendicular line.
For a line to be perpendicular to , its horizontal and vertical changes must be swapped, with one direction reversed. It must move units to the right and units up (or units left and units down).
3. Check the given options to find the perpendicular line.
Checking line : from point to point , the line moves units to the right and units up. This matches the condition for perpendicularity.
答案
BF (option 1)
AI 分析,可能出错
用 AI 批改,圈出写错的那一步,并自动将你的薄弱点存入错题本,形成你的错因库。