如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.-八年级数学-魔方格
来自:www.mofangge.com/html/qDetail/02/c2/201207/r6u9c202196606.html
如图所示,已知AE⊥AB,AF⊥AC,AE=AB,AF=AC.求证:(1)EC=BF;(2)EC⊥BF.-八年级数学-魔方格
来自:www.mofangge.com/html/qDetail/02/c2/201207/r6u9c202196606.html