如图,四边形
中, E是
边的中点, E、C两点恰好关于对角线
所在的直线对称,
,连接
.
![](https://img.xkw.com/dksih/QBM/2023/4/19/3219985650761728/3220473753436160/STEM/de318e1d08bf4a8a8867759169b21fc0.png?resizew=131)
(1)求证:四边形
是菱形;
(2)连接
交
于点F,若
,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b686b84b7a2b8e2326dbb88af5e855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2023/4/19/3219985650761728/3220473753436160/STEM/de318e1d08bf4a8a8867759169b21fc0.png?resizew=131)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dafb1a0ad813ac32b1d3f9c408f623d.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ee826937d2add7a93aaa1422f8b736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
更新时间:2023-04-20 10:53:32
|
相似题推荐
解答题-证明题
|
适中
(0.65)
【推荐1】如图,在四边形
中,
, E,F分别是
的中点,连接
并延长,分别与
的延长线交于点M,N.
(1)求证:
;(提示:取
的中点H,连接
作辅助线)
(2)如图2,在
中,F是
边的中点,D是
边上一点,E是
的中点,直线
交
的延长线于点G,若
,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11944f055fd806016ae3576019d4bf30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32bc8658ac6da92cfaf719cce9259c51.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605d853931f895d51f28215b44e7348c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385a4f84813a2216b96a75e19b8fbff7.png)
(2)如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc35a85a66a978c348378107a0650d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c57b07f75e97d9f84718bd495ebcf4.png)
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真题
名校
【推荐2】如图所示,在
中,点D、E分别为
的中点,点H在线段
上,连接
,点G、F分别为
的中点.
为平行四边形
(2)
,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6af70fc0916098ab31449be4aa64753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2257da1e2425f2ea9ac7440f52659ff.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a490c1b077426cd549f18c6173d167f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】如图,正方形ABCD中,点E是边BC上一点,EF⊥AC于点F,点P是AE的中点.
![](https://img.xkw.com/dksih/QBM/2020/7/15/2506450863210496/2507211430043648/STEM/50bebc0c517a445184c1e5232a9c5376.png?resizew=196)
(1)求证:BP⊥FP;
(2)连接DF,求证:AE=
DF.
![](https://img.xkw.com/dksih/QBM/2020/7/15/2506450863210496/2507211430043648/STEM/50bebc0c517a445184c1e5232a9c5376.png?resizew=196)
(1)求证:BP⊥FP;
(2)连接DF,求证:AE=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
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【推荐2】如图,在
中,
,垂足分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/b1fcb295-3145-4807-8ff4-28021ca72928.png?resizew=148)
(1)求证:
;
(2)若点
是
的中点,连接
,
,并延长
交
于点
,如果
,求
的度数(用含
的式子表示);
(3)在(2)的条件下,若
,求
的面积
与
的面积
之比.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9970dc636eaf5ee5fc9fdf074a06ebe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/9/b1fcb295-3145-4807-8ff4-28021ca72928.png?resizew=148)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/960881cae7daf8b031c57e5e603e4cea.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8120f2eeb724c756b5f84a14c6df527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faee0268e5ede6318697e5a8509dd6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faee0268e5ede6318697e5a8509dd6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f94a7142df3a5395bdf3c115b5c9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/191c1d68303fa3c15a3aae2cfa752878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(3)在(2)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce45219c1c0c50d8dfcd8d156009652f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
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解答题-问答题
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适中
(0.65)
【推荐1】如图1,直线
x+6与y轴交于点A,与x轴交于点D,直线AB交x轴于点B,将△AOB沿直线AB折叠,点O恰好落在直线AD上的点C处.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/7fc8e2eb-e3fa-4e2e-a557-5a09be343761.png?resizew=415)
(1)求OB的长;
(2)如图2,F,G是直线AB上的两点,若△DFG是以FG为斜边的等腰直角三角形,求点F的坐标;
(3)如图3,点P是直线AB上一点,点Q是直线AD上一点,且P,Q均在第四象限,点E是x轴上一点,若四边形PQDE为菱形,求点E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856c83e47aaab6b0d3ef0823bd082c8b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/22/7fc8e2eb-e3fa-4e2e-a557-5a09be343761.png?resizew=415)
(1)求OB的长;
(2)如图2,F,G是直线AB上的两点,若△DFG是以FG为斜边的等腰直角三角形,求点F的坐标;
(3)如图3,点P是直线AB上一点,点Q是直线AD上一点,且P,Q均在第四象限,点E是x轴上一点,若四边形PQDE为菱形,求点E的坐标.
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解答题-问答题
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适中
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【推荐2】如图,菱形
的边
在
轴上,点
,反比例函数
的图象经过菱形两条对角线
,
的交点
.
(2)将菱形
向左平移,当点B落在反比例函数
的图象上时,求平移的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8d7d75a66dd9e14c866e39e82074d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d49d34012ddf68fb981eb4975ac99b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)将菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7385795d7eab9691e21172c51a97428.png)
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解答题-证明题
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适中
(0.65)
【推荐1】如图,在矩形
中,对角线
的垂直平分线
分别交
、
、
于点E、O、F,连接
和
.
(1)求证:四边形
为菱形;
(2)若
,
,求菱形
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/25/d7a00e50-baaf-463b-97d6-96d5ace2a9a3.png?resizew=145)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9766e5eb6796dafc5ffe212afdfc43c0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07140f277a35733d8c97577ccdd4e3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
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【推荐2】如图,在四边形
中,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/86238e16-0979-4963-8cb9-992f1dc45282.png?resizew=178)
(1)利用尺规作
的平分线
,交边
于点E,连接
.(要求:保留作图痕迹,不写作法,标明字母)
(2)在(1)的条件下,求证:四边形
是菱形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e735a28578ba191da6d4f3b0f8e8729.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/86238e16-0979-4963-8cb9-992f1dc45282.png?resizew=178)
(1)利用尺规作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(2)在(1)的条件下,求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1d70676406f26d339465fe3473c0c05.png)
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