如图所示,在直角坐标系中,
,
,线段
在
轴上平移,且满足
,连接
、
、
.
(1)当
时,
__________;
(2)当四边形
的周长取得最小值时,求出此时点
的坐标及四边形的最小周长;
(3)在(2)的条件下,连接
,当
向下平移的过程中,
轴上是否存在一点
,使
为等腰直角三角形?若存在,请求出点
的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c9f25703e265026af2d481e64414d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70266fb643d70a15ab3b48d5245dc982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/9d8da5bf-1efc-4da6-a617-0c17ca1ed722.png?resizew=124)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b100dc90c37518567bf90f9d17de4766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
(2)当四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)在(2)的条件下,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7f9f7952c4be18cb73393047c2ad75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
更新时间:2023-10-01 20:27:14
|
相似题推荐
解答题-问答题
|
较难
(0.4)
【推荐1】如图,在平面直角坐标系
中,直线
与
轴交于点
,直线
与
轴及直线
分别交于点
,
,点
与
关于
轴对称.已知
轴上一点
,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/e9e0e443-679a-449a-9666-91cdf9d7272f.png?resizew=223)
(1)求点
,
的坐标及直线
的解析式;
(2)设面积的和
,求
的值;
(3)在求(2)中
时,小海有个想法:“将
沿
轴翻折到
的位置,而
与四边形
拼接后可看成
,这样求
便转化为直接求
的面积不更快捷吗?”你认为小海的说法正确吗?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e848a84da3af58eae6259765114dab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107babba45f110012183dc4dc54490f7.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3557809c066e68395b614535a7675e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980f8aaeca69f195335110f8051daf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8360d5511ae0885c762cad68c600b4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/30/e9e0e443-679a-449a-9666-91cdf9d7272f.png?resizew=223)
(1)求点
![](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/bb8360d5511ae0885c762cad68c600b4.png)
(2)设面积的和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de4d326ac902cf2adde043281d00c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(3)在求(2)中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](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/afdf73024aa5ba652a0e76af561bdfa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa6fc1dbe68b8df2c4178b8067defeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4686f39b38d5b90309ee73ed89a0640.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4686f39b38d5b90309ee73ed89a0640.png)
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【推荐2】如图,二次函数
的图象与
轴交于
,
两点,与
轴交于
点,其中
,
.
(1)求这个二次函数的表达式;
(2)在二次函数图象上是否存在点
,使得
?点
与点
不重合.若存在,请求出
点坐标;若不存在,请说明理由;
(3)点
是对称轴l上一点,当
是直角三角形时,直接写出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e59da5115d0dafea24822245f92c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbb898663f98b8400a897913b4d3102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850e01debd266a398b597a1876dbb3ea.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/30/a3394ccc-f424-4845-aad9-16bb27754589.png?resizew=334)
(1)求这个二次函数的表达式;
(2)在二次函数图象上是否存在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22facb1082f02fdfe5319b9e9afa0b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bc4b926b29e58400df99ebf5771404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
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解答题-计算题
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【推荐3】阅读下列两则材料,回答问题,
材料一:定义直线y=ax+b与直线y=bx+a互为“互助直线”,例如,直线y=x+4与直y=4x+1互为“互助直线“
材料二:对于平面直角坐标系中的任意两点P1(x1,y1)、P2(x2,y2),P1、P2两点间的直角距离d(P1,P2)=|x1﹣x2|+|y1﹣y2|.例如:Q1(﹣3,1)、Q2(2,4)两点间的直角距离为d(Q1,Q2)=|﹣3﹣2|+|1﹣4|=8
设P0(x0,y0)为一个定点,Q(x,y)是直线y=ax+b上的动点,我们把d(P0,Q)的最小值叫做P0到直线y=ax+b的直角距离.
(1)计算S(﹣1,6),T(﹣2,3)两点间的直角距离d(S,T)= ,直线y=2x+3上的一点H(a,b)又是它的“互助直线”上的点,求点H的坐标.
(2)对于直线y=ax+b上的任意一点M(m,n),都有点N(3m,2m﹣3n)在它的“互助直线”上,试求点L(5,﹣
)到直线y=ax+b的直角距离.
材料一:定义直线y=ax+b与直线y=bx+a互为“互助直线”,例如,直线y=x+4与直y=4x+1互为“互助直线“
材料二:对于平面直角坐标系中的任意两点P1(x1,y1)、P2(x2,y2),P1、P2两点间的直角距离d(P1,P2)=|x1﹣x2|+|y1﹣y2|.例如:Q1(﹣3,1)、Q2(2,4)两点间的直角距离为d(Q1,Q2)=|﹣3﹣2|+|1﹣4|=8
设P0(x0,y0)为一个定点,Q(x,y)是直线y=ax+b上的动点,我们把d(P0,Q)的最小值叫做P0到直线y=ax+b的直角距离.
(1)计算S(﹣1,6),T(﹣2,3)两点间的直角距离d(S,T)= ,直线y=2x+3上的一点H(a,b)又是它的“互助直线”上的点,求点H的坐标.
(2)对于直线y=ax+b上的任意一点M(m,n),都有点N(3m,2m﹣3n)在它的“互助直线”上,试求点L(5,﹣
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
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解答题-问答题
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(0.4)
【推荐1】如图,在菱形
中,
,
,点
.
同时从
、
两点出发,分别沿
、
方向向点
匀速移动(到点
停止),点
的速度为
,点
的速度为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/22/1f084f88-8c71-4245-a4d0-e8939c2d58dc.png?resizew=168)
(1)经过多少秒
为等边三角形?
(2)经过多少秒四边形
的面积为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df3b2901ad26337818f75e81448ebb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dbf31dfd36aa456a63bafea8bc1985.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/5963abe8f421bd99a2aaa94831a951e9.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/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5631e6ec24d3d67bf4592313b6b3f4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d989a128e30a701dfff5592476a76bab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/22/1f084f88-8c71-4245-a4d0-e8939c2d58dc.png?resizew=168)
(1)经过多少秒
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cb97395ebc5ee1b212afb7a97b985c.png)
(2)经过多少秒四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2330c01a4d2b5b20f106e3e48834d5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbd3e8cf8325999cde03adf845d3dd0.png)
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解答题-证明题
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较难
(0.4)
名校
【推荐2】在
中,F为
边上一点,连接
,D为
上一点,连接
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bcf905f3910d9238a44ef647835b3d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/1089bc75-d1e2-4c3e-9006-47372ae66aca.png?resizew=570)
(1)如图1,延长
交
于点G,若
平分
,
平分
,
,
,
,求
的周长;
(2)如图2,连接
,若
,
,E为
中点,连接
,请猜想线段
,
,
之间的数量关系,并证明你的猜想;
(3)如图3,在第(2)问的条件下,当
时,点N是直线
上一动点,连接
,将
沿着
翻折得
,连接
,G为
的中点,连接
,当点G到
的距离最小时,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bcf905f3910d9238a44ef647835b3d1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/10/1089bc75-d1e2-4c3e-9006-47372ae66aca.png?resizew=570)
(1)如图1,延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a72d3a7c37ab84988344731b23ff1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161ec8ec5d859d71539475b2987f352d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532aece6cfd67e2a97977eed978dbf2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(3)如图3,在第(2)问的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b686b84b7a2b8e2326dbb88af5e855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eda61683bb1d4d62441f0625097b477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a459f78e4a3516d8a8535290ede7f386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16ed74a192f0a31b08da8102e1c00a9.png)
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解答题-问答题
|
较难
(0.4)
【推荐1】在平面直角坐标系中,等边
的顶点
的坐标分别为
,点D是x轴正半轴上一个动点,连接
,将
绕点C逆时针旋转
得到
,连接
.
![](https://img.xkw.com/dksih/QBM/2021/4/29/2710258173411328/2710296031027200/STEM/de026cae-0c5d-457b-b403-a39975f40de1.png)
(1)如图①,当点D在线段OA上时,求点C的坐标;
(2)如图②,当点D在线段AB上,且
时,求点E的坐标;
(3)当
是直角三角形时,求点D的坐标(直接写出结果即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c372183abd4e6d3eca4eda4b157a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/2021/4/29/2710258173411328/2710296031027200/STEM/de026cae-0c5d-457b-b403-a39975f40de1.png)
(1)如图①,当点D在线段OA上时,求点C的坐标;
(2)如图②,当点D在线段AB上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab5c45a72849d2cae1d65b282b5bd19.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
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解答题-问答题
|
较难
(0.4)
【推荐2】如图1,在
中,
,点P从点A出发,以每秒1个单位长度的速度沿路线
运动.设点P的运动时间为t秒.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/f38a2811-9bd0-41b1-a6c5-97371a31210c.png?resizew=742)
(1)
_________;当点P在
上时,
_________(用含t的代数式表示);
(2)如图2,若点P在
的角平分线上,求t的值;
(3)在整个运动过程中,当
是等腰三角形时,求t的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3755b855978d2df812eae501bf48039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e06dc307ebab89176dd5e32d295d6c6f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/f38a2811-9bd0-41b1-a6c5-97371a31210c.png?resizew=742)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc2ddabf078c1b683b067eb1aee1969.png)
(2)如图2,若点P在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(3)在整个运动过程中,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
您最近一年使用:0次
解答题-作图题
|
较难
(0.4)
【推荐1】如图:五边形ABCDE中,AB∥CD,BC⊥AB,AB=BC=8,CD=5.
(1)说明∠A,∠E,∠D之间的数量关系;
(2)平移五边形ABCDE,使D点移动到C点,画出平移后的五边形A'B'C'CE',并求出顺次连接A、A'、E'、C、D、E、A各点所围成的图形的面积;
(3)在∠BAE和∠E'CD的内部取一点F,使∠EAF=
∠EAB,∠FCE'=
∠DCE' ,求∠AFC与∠AED之间的数量关系.
(1)说明∠A,∠E,∠D之间的数量关系;
(2)平移五边形ABCDE,使D点移动到C点,画出平移后的五边形A'B'C'CE',并求出顺次连接A、A'、E'、C、D、E、A各点所围成的图形的面积;
(3)在∠BAE和∠E'CD的内部取一点F,使∠EAF=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2019/3/28/2170443475959808/null/STEM/bceb52795c474ec4924178c8086537e7.png?resizew=156)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图1,在平面直角坐标系中,点A,B的坐标分别为
,
.将线段
向左平移4个单位长度,再向下平移2个单位长度,得到线段
,连接
.
(2)如图2,点P是射线
上一点,连接
,
与
的角平分线相交于点E,求证:
;
(3)如图3,点P是射线
上一点,点Q是射线
上一点,连接
,
与
的角平分线相交于点F,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17e5a2a3203c88ff8b2b325f5ee9cd3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e2fb818b15dcd2e3a548e23d39502a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2d3ea3bdfca7111b823bb1c381a0f9.png)
(2)如图2,点P是射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48771358b76e240743bb49c497ef7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8880a19f54778d1f42210d149c720ff.png)
(3)如图3,点P是射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48771358b76e240743bb49c497ef7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a2ca45021ce41a8214772dc2cde8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f11cf399e1c7b97ae39effe8093631b.png)
您最近一年使用:0次