如图,在平面直角坐标系中,A(3,4),B(1,2),C(5,1).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/fc65a7e5-08ca-417c-a77e-f74e9dbabd71.png?resizew=255)
(1)在图中做出△ABC关于
轴的对称图形
.
(2)直接写出点
关于
轴的对称点的坐标 .
(3)求△ABC的面积.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/2/fc65a7e5-08ca-417c-a77e-f74e9dbabd71.png?resizew=255)
(1)在图中做出△ABC关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)直接写出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(3)求△ABC的面积.
更新时间:2022-09-01 12:31:10
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解答题-问答题
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【推荐1】如图,△AOB中,A、B两点的坐标分别为(-4,-6),(-6,-3),求△AOB的面积.(提示:△AOB的面积可以看作一个梯形的面积减去一些小三角形的面积).
![](https://img.xkw.com/dksih/QBM/2017/11/8/1812803109535744/1813528843427840/STEM/80ab851337384e4caafd173a50761911.png?resizew=256)
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【推荐2】如图,在平面直角坐标系xOy中,直线
与x轴、y轴分别交于A、B两点,
.
(1)求k的值;
(2)点P在线段AB上,连接OP.若
,求点P的坐标;
(3)将直线AB绕点A逆时针旋转45°后得到直线AC,求直线AC的表达式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65920f4695a14c85e7085450aee08b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e2d2a0393a63862a557a1531e40e83.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/22/ce997eb0-3081-41c6-b30e-68584df2b0cf.png?resizew=216)
(1)求k的值;
(2)点P在线段AB上,连接OP.若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65c4d1905ece5cbce3e94c77f6913f3.png)
(3)将直线AB绕点A逆时针旋转45°后得到直线AC,求直线AC的表达式.
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解答题-作图题
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【推荐1】如图,请按照下列要求画图:
![](https://img.xkw.com/dksih/QBM/2019/12/6/2349322920960000/2349985461051392/STEM/b84451ac7531433d8bfd7933de3892dd.png?resizew=380)
(1)如图,
为等边三角形,以边
为直径的圆,与另两边
,
,分别交于点
,
,你仅用无刻度的直尺在下图中做出的边
上的高;
(2)如图,已知
的顶点
,
,
,坐标分别是
,
,
.
①作出
关于
轴对称的图形
;
②将
绕原点
按顺时针方向旋转
后得到
,画出
.
![](https://img.xkw.com/dksih/QBM/2019/12/6/2349322920960000/2349985461051392/STEM/b84451ac7531433d8bfd7933de3892dd.png?resizew=380)
(1)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)如图,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/0fc9aa334c8a364cbc597127d60b2b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b85c8d6c5752f12ce561b94eb475bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99933128ec4db75e2838f40c91e90a96.png)
①作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c3135fa20c32d04a270750f77c1f2d.png)
②将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403590d719951bd6133479f4e52041bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/403590d719951bd6133479f4e52041bc.png)
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解答题-作图题
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【推荐2】如图,在平面直角坐标系中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/f558112d-b5aa-4630-ab34-50db93e3d323.png?resizew=240)
(1)在图中作出
关于
轴对称的
.
(2)写出
,
,
的坐标(直接写出答案),
________;
________;
________.
(3)若点
是
轴上的一个动点,当
值最小时,求出的
最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1dab74e16403e8131f9f5b2a74f3a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac95dab5c3db41c5711a3c836b2f1419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/733ca3719874892ee4ffbbaa2030b2f8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/17/f558112d-b5aa-4630-ab34-50db93e3d323.png?resizew=240)
(1)在图中作出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
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解答题-作图题
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【推荐1】在如图所示的平面直角坐标系中,已知点
,点
,将点
向右平移2个单位长度后的对应点为点
,点
关于
轴的对称点为点
.
,点
,并写出
,
两点的坐标;
(2)连接
,
,
,判断
的形状并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26db64c39d9de58594472e2f9725939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8a7cdcc3ad7b38b9b75293364915c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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名校
【推荐2】在平面直角坐标系中,对于点M(a,b),N(c,d),将点M关于直线x=c对称得到点M′,当d≥0时,将点M′向上平移d个单位,当d<0时,将点M′向下平移|d|个单位,得到点P,我们称点P为点M关于点N的对称平移点.
例如,如图已知点M(1,2),N(3,5),点M关于点N的对称平移点为P(5,7).
(1)已知点A(2,1),B(4,2),
①点A关于点B的对称平移点为 (直接写出答案).
②若点A为点B关于点C的对称平移点,则点C的坐标为 .(直接写出答案)
(2)已知点D在第一、三象限的角平分线上,点C的横坐标为m,点E的坐标为(1.5m,0).
①点K为点E关于点D的对称平移点,若以D,E,K,O为顶点的四边形围成的面积为6,求m的值;
②点E向右平移1个单位得到点F,点E向右平移6个单位得到点l,以EF一边向上作正方形EFGH,以F一边向上作正方形FIMN,点P为正方形EFGH的边上的一个动点,在点P运动过程中,若D点关于P点的所有对称平移点都在正方形FIMN的内部或边上,请直接写出m的取值范围.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/d5b15204-1285-4189-b134-7fde3ceef2ec.png?resizew=282)
例如,如图已知点M(1,2),N(3,5),点M关于点N的对称平移点为P(5,7).
(1)已知点A(2,1),B(4,2),
①点A关于点B的对称平移点为 (直接写出答案).
②若点A为点B关于点C的对称平移点,则点C的坐标为 .(直接写出答案)
(2)已知点D在第一、三象限的角平分线上,点C的横坐标为m,点E的坐标为(1.5m,0).
①点K为点E关于点D的对称平移点,若以D,E,K,O为顶点的四边形围成的面积为6,求m的值;
②点E向右平移1个单位得到点F,点E向右平移6个单位得到点l,以EF一边向上作正方形EFGH,以F一边向上作正方形FIMN,点P为正方形EFGH的边上的一个动点,在点P运动过程中,若D点关于P点的所有对称平移点都在正方形FIMN的内部或边上,请直接写出m的取值范围.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/d5b15204-1285-4189-b134-7fde3ceef2ec.png?resizew=282)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/d3e8cfd7-418b-490a-bfd8-ff098920edca.png?resizew=554)
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解答题-作图题
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适中
(0.65)
【推荐1】如图,
在平面直角坐标系中,点A、B、C的坐标分别为
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/12/f8863b9c-3da7-4603-bb53-eccb04037814.png?resizew=335)
(1)画出
关于y轴对称的
,其中点A、B、C的对应点分别为
,
,
;
(2)将
向下平移5个单位长度得到
,请直接写出点
,
,
的坐标;
(______,______),
(______,______),
(______,______)
(3)连接线段
,
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1294434b22cb5133043a2270ae1c43f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3355d436341d161584eca56624f7ee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac09e4d97f0b741da92eea4867278af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/12/f8863b9c-3da7-4603-bb53-eccb04037814.png?resizew=335)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(3)连接线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a99bce03167ff2a6501f0258852a668.png)
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【推荐2】如图:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/f181d6d8-89a6-4c34-8859-65b64022f952.png?resizew=191)
(1)作出与
关于
轴对称的图形
;
(2)若图中一个小正方形边长为一个单位长度,请写出各点的坐标:
(______);
(______);
(______)
(3)在
轴上找一点
,使
最小,在坐标中画出点
,并写出点
坐标______(保留作图痕迹)
(4)求
的面积
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/7/f181d6d8-89a6-4c34-8859-65b64022f952.png?resizew=191)
(1)作出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)若图中一个小正方形边长为一个单位长度,请写出各点的坐标:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac656ec89607f52b5353dba400fab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(4)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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