1 . 如图1,在矩形
中,E为
延长线上一点,且
,
交
于点F,
.
(1)求证:
;
(2)求证:
;
(3)如图2,G为
上一点,
,
相交于点O,连接
.若
,且
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce25e95729c34d26e482512d36dd89b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/26/4356d7aa-bd53-4134-a291-4938a156c532.png?resizew=280)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d390df2733a81db86f0556dba8af0f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db827cbb22a564c4dbaa6e1c78c6dae5.png)
(3)如图2,G为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307bd991211ec79b47a4be52933bb8e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482d66b7dddfcb7db44c746f11a32ed9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8416b9c7e23d5f090b08c1adaadffc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
您最近一年使用:0次
2 . 求证:一组对边平行且一条对角线被另一条对角线平分的四边形是平行四边形.
您最近一年使用:0次
2023-10-12更新
|
70次组卷
|
2卷引用:安徽省芜湖市无为第三中学2021-2022学年八年级下学期期中数学试题
3 . 如图,正方形
中,点
、
分别是边
、
上的点,点
是直线
上的点.
(1)若
,求证:
;
(2)若
,
,设直线
、
相交所成的角为
,
________(直接写答案).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/a272370c-d759-482b-bbb6-263624d1ce65.jpg?resizew=117)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13c38b7dd0798de6cf48b115ae8b7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7b05f1f0d9dfcd37da1e437861aae6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7b05f1f0d9dfcd37da1e437861aae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d05b0740d6f6e78e3477447f6104b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974762e15695c9482f34a43ffe1c8585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9251dff989f7d60db751b73033dee269.png)
您最近一年使用:0次
4 . 已知:在
中,
,点
为
中点,
交
于点
,垂足为点
,点
为
边上一点,
交
于点
,交
于点
,连接
,且
.
(1)求证:
;
(2)求证:
;
(3)若
,求
的长.
![](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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b937442ad4cc480adc11bb143559454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e72b2e1ff83e95df048745322982451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae58fd918f425f3311f4a3d7b614d25.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/81a33a2c-b964-458d-a1f8-8b92f8eb4418.png?resizew=166)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9dfa989b02ddfd377844586f22dd175.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d157f535cd82f0f6465d2fd8c8f421.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04be58ea6ca37a850422631eb3e994d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
5 . 点M为正方形
的边
的中点,分别连接
交
的延长线于E,
于F,交
于G.设
和
的面积分别为
、
、
和
,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c9f738c5c640f077d815d51b98a795d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945f11a4e5087c25cd098714eff16068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8de0545b4a77d4cf56d4bcfcbb9c3c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcaecf08a22124a457128fb04c9c02bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edbf2c269423f930e499615444f02e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6df4654727c07e70b1946ea04e9fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e00e62201a2c11b7a4860f7fe26b3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/671c86d0f91a4e97af4d7daa76993308.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图,已知
,
与
交于点
,
,
分别与
,
交于点
,
,连接
,则下列结论中错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/a6db469e-6984-43ab-9d97-b2b7e3d266d4.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03a43549ab71f0998fffbcb48397b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/11/a6db469e-6984-43ab-9d97-b2b7e3d266d4.png?resizew=132)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 在
中,
,延长AC到点D使
,作
,垂足为点E,交
于点F,连接
和
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/8e309695-16ac-45a1-ab13-0b54f5b107d0.png?resizew=150)
(1)求证:
;
(2)如果
,求
的度数;
(3)如果
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/109137e4bebd256666f979fc959f38fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7305de9211785b826823153897b17517.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d276d0010fd458383ea3dd61415e1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/735056c174e8dd7906257a2a50a962a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/8e309695-16ac-45a1-ab13-0b54f5b107d0.png?resizew=150)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805bfe61e6cf5a9a7f6d5eaad5c5853.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc688c55cf2d34194d90355a1e9ac48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed24d7acba0b3a7ebf4d520296424a3.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402c0f9eecfcdf73f9e87ca82a6f2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4901a7eda97d6a307db76c4fb196ba3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
名校
8 . 如图,已知
中,
是
上的一点,
,交
的延长线于点
,
,垂足为
是
延长线上一点,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/c8376545-2625-465d-86eb-4ad945c64b4b.png?resizew=144)
(1)若
是
的中点:
①求证:
;
②若
,求证:
;
(2)若
是
上的动点,当
点沿着
从
点运动到
点的过程中,
的大小变化情况是________.(填序号)
①始终不变 ②一直增大 ③先增大后减小 ④先减小后增大
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c897a54f2e36bc4b52fba74b41c89d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a16a8164f44bd24d7451c6700fef4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/6/c8376545-2625-465d-86eb-4ad945c64b4b.png?resizew=144)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c58ee5acdcf7aa4de11414b110ad680d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bcbc3d0e917e869f89feb2d1ba8fc06.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c66b632c49dbebc4b2182592d68ee937.png)
①始终不变 ②一直增大 ③先增大后减小 ④先减小后增大
您最近一年使用:0次
名校
9 . 如图1,已知等腰直角三角形
,
,
,点F是
中点,点D与点F关于
对称,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7a7cb412-181d-4e42-b583-a19380a5ae31.png?resizew=486)
(1)求证:四边形
是正方形;
(2)如图2把四边形
绕点A旋转,使得点D在
的延长线上,点E为点B的对应点,连接
与
.
①求证:
;
②若
与
交于点G,与
交于点H,求
的长,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e7460076d4d6d0e47316e5130d05c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb49a110acec1e86b8e8969300f0cd2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/7a7cb412-181d-4e42-b583-a19380a5ae31.png?resizew=486)
(1)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a255b7e4988e013e973c382d4a6c6a.png)
(2)如图2把四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a255b7e4988e013e973c382d4a6c6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431fbf73778bfe5eb04ed88f2a19ecb3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc56c77464a17a1e97b568762a3e2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
您最近一年使用:0次
名校
10 . 已知如图,正方形ABCD的边长为2,点E是CD边上的中点,矩形GHIF经过正方形A、B、C三个顶点,并正好经过E点,连接BE,若BE⊥FI.
(1)矩形BHIE的面积是_____________ ;
(2)
=_________ .
(1)矩形BHIE的面积是
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d461f6c9ae7a72e3e4b75e80e8386cd.png)
您最近一年使用:0次
2022-09-21更新
|
294次组卷
|
3卷引用:安徽省合肥市第三十中学2021-2022学年下学期八年级数学期末测试卷
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