没有图,∠1,∠2在哪?你可从全等或等边对等角去做,应该相等的
已知:如图,AB=AC,AE=AF,AE⊥EC,AF⊥BF,则∠1=∠2吗
1个回答
相关问题
-
已知:如图,AB=AC,AE=AF,AE⊥EC,AF⊥BF,则∠1=∠2吗?为什么?
-
如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.
-
如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.
-
如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.
-
如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.
-
如图所示,已知AE⊥AB,AF⊥AC,AF=AC,求证:(1)EC=BF(2)EC⊥BF
-
如图,已知AB=AC,∠BAC=90°,EC⊥AC,EC=AF,求证:AE⊥BF
-
已知,如图,AE⊥AD,AF⊥AB,AB//CD,AE=AD,AF=CD.求证AC=EF.
-
如图,AB=AC,AE=AF,AE垂直于EC于点E,AF垂直于FB与F.求证:角1=角2
-
如图20,AD是△ABC的中点,AE⊥AC,AF⊥AB,且AE=AC,AF=AB.求证:AD=1/2EF