解答题-证明题 适中0.65 引用1 组卷145
如图,在
ABC中,
ACB=90°,D是AC的中点,DE
AC,AE//BD.
(1)证明:
ADE![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4f0763c0973e539a73198990d4bfc4.svg)
DCB;
(2)连接BE,判断四边形BCDE的形状,并证明;
(3)若BC=4,AE=5,求四边形ACBE的周长.
![](https://img.xkw.com/dksih/QBM/2019/4/25/2190172905537536/2193766684540928/STEM/f2a7cff3bd3246f6a9cf1c81bb1bc853.png?resizew=134)
(1)证明:
(2)连接BE,判断四边形BCDE的形状,并证明;
(3)若BC=4,AE=5,求四边形ACBE的周长.
![](https://img.xkw.com/dksih/QBM/2019/4/25/2190172905537536/2193766684540928/STEM/f2a7cff3bd3246f6a9cf1c81bb1bc853.png?resizew=134)
18-19八年级下·四川南充·期中
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