如图,在△ABC中,点D在BC上且AB=AD,AC=AE,∠BAD=∠CAE,DE=12,CD=4,则BD=_________.
八年级数学填空题中等难度题
如图,在△ABC中,点D在BC上且AB=AD,AC=AE,∠BAD=∠CAE,DE=12,CD=4,则BD=_________.
八年级数学填空题中等难度题查看答案及解析
如图,在△ABC中,点D在BC上且AB=AD,AC=AE,∠BAD=∠CAE,DE=12,CD=4,则BD=_________.
八年级数学填空题中等难度题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC,AF⊥CB,垂足为F.
(1)求证:△ABC≌△ADE;
(2)求∠FAE的度数;
(3)求证:CD=2BF+DE.
八年级数学解答题困难题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC,AF⊥CB,垂足为F.
(1)求证:△ABC≌△ADE;
(2)求∠FAE的度数;
(3)求证:CD=2BF+DE.
八年级数学解答题困难题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC,AF⊥CB,垂足为F.
(1)求证:△ABC≌△ADE;
(2)求∠FAE的度数;
(3)求证:CD=2BF+DE.
八年级数学解答题困难题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC,AF⊥CB,垂足为F.
(1)求证:△ABC≌△ADE;
(2)求∠FAE的度数;
(3)求证:CD=2BF+DE.
八年级数学解答题困难题查看答案及解析
((12分)如图,AB=AC,AD=AE,DE=BC,且∠BAD=∠CAE.
求证:四边形BCDE是矩形.
八年级数学解答题简单题查看答案及解析
如图,△ABC中,AB=AC,AD⊥BC,垂足为D,DE∥AB,交AC于点E,则下列结论不正确的是( )
A. ∠CAD=∠BAD B. BD=CD C. AE=ED D. DE=DB
八年级数学单选题中等难度题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC.
(1)证明:BC=DE;
(2)若AC=12,CE经过点D,求四边形ABCD的面积.
八年级数学解答题中等难度题查看答案及解析
如图,∠BAD=∠CAE=90°,AB=AD,AE=AC.
(1)证明:BC=DE;
(2)若AC=12,CE经过点D,求四边形ABCD的面积.
八年级数学解答题中等难度题查看答案及解析