如图,在五边形ABCDE中,
,求x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/28/ceb0e8d8-ad03-4ade-805b-e3513df806b4.png?resizew=159)
22-23八年级上·广东广州·期中 查看更多[7]
广东省广州市第七十五中学2022—2023学年八年级上学期数学期中考试(已下线)专题7.10 平行线的证明(全章复习与巩固)(基础篇)(专项练习)-2022-2023学年八年级数学上册基础知识专项讲练(北师大版)四川省巴中市巴州区2022-2023学年七年级下学期5月月考数学试题河南省洛阳市偃师市洛阳偃师中成外国语学校2022-2023学年七年级下学期期末数学试题陕西省商洛市商南县试马镇试马中学2023-2024学年八年级上学期期中数学试题湖南省长沙市望城区2023-2024学年八年级上学期期末数学试题新疆乌鲁木齐市沙依巴克区2023-2024学年八年级上学期12月月考数学试题
更新时间:2023-11-25 19:05:13
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,AB∥CD,点E是CD上一点,∠AEC=30°,AE平分∠CEF,EF交AB于F,求∠AFE的度数.
![](https://img.xkw.com/dksih/QBM/2020/1/11/2374580930027520/2374843004116992/STEM/ba99b323cd904543b8ebab73230aaa73.png?resizew=175)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】如图,
的平分线
和
的平分线
交于点E,
交
于点F,
求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b125d84e2e04d284b73e23549aaa8587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a72dfbf0138a611174c36ce077e0c47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0b4de7037d1917b0a964db6438df07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d786ee723231d4ca87eb9d011a378b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/7/dd1c96c9-1f6b-4e92-bf54-992ef0898be6.png?resizew=192)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐1】在
的平分线上取点
,作
,垂足为
,动点
分别在直线
,射线
上,且
.
(1)如图1,当点
在线段
上时,作
.
①求证
;
②求
的度数;
(2)如图2,当点
在
延长线上时.
①
的度数为 ;
②求
之间的数量关系;
(3)在满足(2)中①
的度数不变的条件下,当点
在射线
上,点
在射线
上时,直接写出
之间的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c85aff86473b149be8c8c2c2bbd81f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/4/5cbeedca-754d-4ed2-a389-279e5727d940.png?resizew=598)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/596108ef6e52ded67ebb9ec300c68b44.png)
①求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239e9963cebd08978c704a55c07fd649.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5406e3df2634af50a89d1518cc1ffe7.png)
(2)如图2,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32395bce0f32cf51671acddce256bc6.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5406e3df2634af50a89d1518cc1ffe7.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d2bd4677776422954175f3beca55cf.png)
(3)在满足(2)中①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5406e3df2634af50a89d1518cc1ffe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e7fcc611b32b510055365f3653ca74.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐2】已知BD、CE是△ABC的两条高,直线BD、CE相交于点H.
![](https://img.xkw.com/dksih/QBM/2019/6/28/2235383794270208/2235971923853312/STEM/229f1ec9b517404ebb4dd95b83e904b6.png?resizew=122)
(1)如图,①在图中找出与∠DBA相等的角,并说明理由;②若∠BAC=100°,求∠DHE的度数;
(2)若△ABC中,∠A=50°,直接写出∠DHE的度数是 .
![](https://img.xkw.com/dksih/QBM/2019/6/28/2235383794270208/2235971923853312/STEM/229f1ec9b517404ebb4dd95b83e904b6.png?resizew=122)
(1)如图,①在图中找出与∠DBA相等的角,并说明理由;②若∠BAC=100°,求∠DHE的度数;
(2)若△ABC中,∠A=50°,直接写出∠DHE的度数是 .
您最近一年使用:0次