如图,AE与BC相交于点D,BD=CD,AD=ED,CA⊥AE.∠1=∠30°,且AB=3厘米,那么线段AC多长?别用勾
如图,AE与BC相交于点D,BD=CD,AD=ED.CA⊥AE,∠1=30°,AB=3cm,那么线段AC多长
如图:AB=AC,CD⊥AB于D,BE⊥AC于E,BE与CA相交于点O (1)说明AD=AE成立 (2)连接OA,BC,
如图,AB=AC,∠BAC=90°,BD⊥AE于D,CE⊥AE于E,且BD>CE.求证:BD=EC+ED.
如图,已知:AB‖CD,AC=BC,角ACB=90°,AB=BD,DB与CA的延长线相交于点E.求证:AD=AE
初三放缩与相似性已知:如图,线段BD与CE相交于点A,AD:BD=AE:CE求证:AB:AC=AD:AE
如图在△ABC中,AB=CB∠BAC=9∠C=60°,点D,E分别在边BC,AC上,且AE=CD,AD与BE相交于点F
如图AB=AC AD=AE,BE与CD相交于点o,求证AO⊥BC
如图,点D在AB上,点E在AC上,CD与BE相交于点O,且AD=AE,AB=AC.
已知:如图,C,D为半圆上的两点,且BD弧=DC弧,连接AC并延长,与BD的延长线相交于点E求证:AB=AE,CD=ED
如图,AB=AC,CD⊥AB于D,BE⊥AC于E,BE与CD相交于点O (1)求证AD=AE; (2)连接OA,BC,试
如图 AB=AC,CD⊥AB于D,BE⊥AC于E,BE与CD相交于点O. (1)求证AD=AE; (2)连接OA,BC,
如图,已知点D,E分别在AB,AC上,AD=AE,连接BE,CD相交于点O,且∠1=∠2,试说明:BD=CE