Question

八年级数学寒假作业已知如图，△ABC为直角三角形纸片，∠C=90°，AC≤BC，将纸片沿EF折叠，使A点落在BC上D点，

Answer 1

http://www.***.com/s?wd=%E5%B7%B2%E7%9F%A5%E5%A6%82%E5%9B%BE%EF%BC%8C%E2%96%B3ABC%E4%B8%BA%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%E7%BA%B8%E7%89%87%EF%BC%8C%E2%88%A0C%3D90%C2%B0%EF%BC%8CAC%E2%...