如图,已知线段
,点C、B都是线段
上的点,点E是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/0573ebfc-aea2-4dbf-b0fa-5d441a2ba81b.png?resizew=292)
(1)若
,求线段
的长.
(2)在(1)的条件下,若
,且点F是线段
的中点,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/581457069953f73707f995224fcda689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/0573ebfc-aea2-4dbf-b0fa-5d441a2ba81b.png?resizew=292)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f71a52438196c3aca604fa927be8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae32ef5291dc50ea06da0067b127fbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
21-22七年级上·四川成都·期中 查看更多[8]
更新时间:2021-12-06 13:38:19
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相似题推荐
解答题-作图题
|
较易
(0.85)
名校
【推荐1】已知线段
、
、
.
(1)用直尺和圆规作出一条线段
,使它等于
.(保留作图痕迹,检查无误后用水笔描黑,包括痕迹)
(2)若
,
,
,点
是线段
的中点,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/30/75954929-9c64-4a9f-8ec1-510b52f918c2.png?resizew=128)
(1)用直尺和圆规作出一条线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c741411141b18960fe5766c3754c4d7d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08ce80e91fdf435a8e3ec05be990e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb75557d217f59ef1f33e8da1ac0d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
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解答题-作图题
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较易
(0.85)
【推荐2】如图,点
在线段
上,
是线段
的中点.
![](https://img.xkw.com/dksih/QBM/2020/2/27/2408161822810112/2408936728027136/STEM/c0620bca8d924eb88001bd5f56e86cf3.png?resizew=554)
(1)在线段
上,求作点
,使
.
(要求:尺规作图,不写作法保留作图痕迹)
(2)在(1)的条件下,
,
①若
,求
的长;
②若点
在线段
上,且
,请你判断点
是哪条线段的中点,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2020/2/27/2408161822810112/2408936728027136/STEM/c0620bca8d924eb88001bd5f56e86cf3.png?resizew=554)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5a122e25cf4eb9f03ffe5ec823bfc31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9dd2464f0a641c25989434b7f71b5a.png)
(要求:尺规作图,不写作法保留作图痕迹)
(2)在(1)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4441b955a9b0461a5a4f55815a791a40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bf2304277507a9f9c60e54916a05ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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解答题-问答题
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较易
(0.85)
【推荐1】如图,
在同一直线上,
为
中点,
为
中点,
为
中点,
为
中点,
,
,
,试判断
与
的数量关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390f2c99d60abc83d9bda1a79995486f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae15e5357601ddb7e303b56dbe337145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/454328a8e75953fdb0835ce80d9566e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://img.xkw.com/dksih/QBM/2019/6/10/2222629565333504/2222663890477056/STEM/79e5bfa9e859401da43c82bcdaa18c63.png?resizew=272)
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解答题-证明题
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较易
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【推荐2】如图,点B,E,C,F在一条直线上,且
,
,
,求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/7d26f49d-7917-4516-83c1-b48b3eb0ceeb.png?resizew=177)
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd81adb13f5a7550b0f94f770900a613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/18/7d26f49d-7917-4516-83c1-b48b3eb0ceeb.png?resizew=177)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaae99b4ac308549134169e69247a6.png)
您最近一年使用:0次