还有其他条件吗?
by feather_life @ 2024-03-28 22:46:34
@[feather_life](/user/507374) 就是知道了ad,bc,ab,ac的长度呗
by ChenZQ @ 2024-03-28 22:50:15
@[feather_life](/user/507374) 已知三角形ABC,DE平行于BC
by ChenZQ @ 2024-03-28 22:50:33
@[ChenZQ](/user/745358) 那就有三角形ADE和三角形ABC相似啊
by feather_life @ 2024-03-28 22:55:41
相似三角形对应边成比例啊
by huyiheng @ 2024-03-28 23:04:04
@[ChenZQ](/user/745358) 请学习九年级上册第四单元。。
by Special_Tony @ 2024-03-29 10:47:27
相似定理,两三角形相似的条件下面积比是长度比的平方???
by EricEnkAliTheFox @ 2024-03-29 12:49:59