已知:如图,△ABC中,AB=AC,BE∥AC,∠BDE=100°,∠BAD=70°,则∠E=_____________ .
![](https://img.xkw.com/dksih/QBM/2018/8/21/2015264620290048/2037882021978112/STEM/ce19799def314301bfd9b714f8740f2c.png?resizew=157)
19-20八年级上·山东·单元测试 查看更多[4]
(已下线)青岛版2018-2019学年八年级上学期数学第02章 图形的轴对称(单元测试01)2018-2019学年八年级上册(人教版)数学章末测试卷:第11-13章山东省菏泽市单县启智学校2019-2020学年八年级上学期10月月考数学试题江西省吉安市峡江县2017-2018学年七年级下学期月考试卷(二)数学试题
更新时间:2018-09-22 15:04:29
|
相似题推荐
填空题
|
较易
(0.85)
【推荐1】填空:(将下面的推理过程及依据补充完整)
如图,已知:
平分
,AC∥DE,CD∥EF,那么
平分
吗?
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892284493348864/2948844295372800/STEM/9b7edd23-ad6e-4583-96eb-76ba58d7225d.png?resizew=250)
解:
CD平分
(已知),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
( ),
AC∥DE(已知),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8b514fa233dfa2dabd7ffb5f02e4e0.png)
,
(等量代换),
CD∥EF(已知),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
( ),
( ),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
(等量代换).
平分
.
如图,已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6beda2518cf76da94d7ec9a813dcfa82.png)
![](https://img.xkw.com/dksih/QBM/2022/1/1/2892284493348864/2948844295372800/STEM/9b7edd23-ad6e-4583-96eb-76ba58d7225d.png?resizew=250)
解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b8b514fa233dfa2dabd7ffb5f02e4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665ffcdb7c57534dc184cc840471f2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d98228bd5ecb89ef69c62a71f8e1ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7cbd57d6ab54b4cb236ac890c19c65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee8c5a326c2bc83d09a9d4a7570df75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39cb3c5ccd1f7ca5fed5163b4cea2f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a21cbe3ed081aecbb8560eaad34023.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6beda2518cf76da94d7ec9a813dcfa82.png)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】如图,
平分
,
平分
,
经过点 O,且
若
,
, 则
的周长是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d3f7658ee6347ff5b86e3e8536330f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3faf171916f7a730fd124542294df9ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1dc52a8ba9f389800eb92dbd145bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30912a21aa3d8412f8e020e13ce4cd10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/29/75e69df4-c4af-4e09-8563-42fabbbe562e.png?resizew=118)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐1】如图,Rt△ABC中,∠ACB=90°,∠B=42°,将其折叠使点A落在BC边上的
处,折痕为CD,则
=_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975e53b518e716ff49ce1ddac636dc1f.png)
![](https://img.xkw.com/dksih/QBM/2022/3/30/2947536660652032/2948648932573184/STEM/89617c91946a4a71b480879c586e2cd7.png?resizew=126)
您最近一年使用:0次
填空题
|
较易
(0.85)
【推荐2】如图,
中,
,
,
,若
恰好经过点
,
交
于
,则
的度数为__________ °
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cdc5c5356ec37800b9e71ee1ad5cca7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61683e471f8de68d52f1af58b07a287e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb97aff0960e2640314888a38e7169c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb10c67c1fd58b9bdce914f43251f53.png)
您最近一年使用:0次
填空题
|
较易
(0.85)
名校
【推荐1】如图,∠BAC=108°,若MP 和NQ 分别垂直平分AB 和AC,则∠PAQ 的度数是_____ .
![](https://img.xkw.com/dksih/QBM/2018/12/18/2099340618956800/2100841509011457/STEM/ebe877ea60474004811460032e56969e.png?resizew=211)
您最近一年使用:0次
填空题
|
较易
(0.85)
名校
【推荐2】在等腰△ABC中,AB=AC,∠B=40°,则 ∠A=________ .
您最近一年使用:0次