名校
1 . 如图1,边长为
的正方形
中,点P为
上一个动点,连接
,作
于点
,交边
于点M,
于
.
;
(2)如图2,连接
,线段
交
于点
,点
为
的中点.
时,求
的长;
②线段
是否存在最小值和最大值,若存在,请直接写出线段
的最小值和最大值,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcabbb4a3204d94675ce39838e13c3af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9172c05a868ee87e293e6dee6094834f.png)
(2)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d10f2db7289ff1ec65c47d9af77a9c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
②线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
您最近一年使用:0次
2023-04-15更新
|
278次组卷
|
6卷引用:浙江省杭州市西湖区杭州市上泗中学2022-2023学年八年级下学期5月月考数学试题
2 . 如图,在平面直角坐标系中,二次函数
的图象与
轴相交于点
,
,与
轴相交于点
.若二次函数
的图象经过点
,
.
(2)当
时,求二次函数
最大值与最小值的差;
(3)在二次函数
图象上任取一点
,其横坐标为
.点
在二次函数图象的对称轴上.若以点
,
,
为顶点三角形是以
为直角的等腰三角形.求点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.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/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd1a5612d7ae2b99265e6527c9ae78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd92d7c87aaa950ce4d4b26578ae2221.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47b6fd5a1dbb65cbe9bfe602c914a24f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.png)
(3)在二次函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a0d44326c214c7a5ecc3068a29ec96f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030314ca026d6b18481682f70f48d19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2022-12-27更新
|
164次组卷
|
4卷引用:浙江省台州市玉环市实验初级中学2023-2024学年九年级上学期期中数学试题
3 . 综合与实践:动手操作:某校八(1)班数学课外兴趣小组在学完第13章的特殊三角形后,利用手头上的一副三角板,他们将一块直角三角板
(
,
)的直角顶点
放置在另一块直角三角板
(
,
)斜边
的中点处,并将三角板
绕点
任意旋转.
发现结论:
(1)如图,三角板
的两边
分别与另一块三角板的边
交于点
(规定:此时点
均在边
上运动),他们在旋转过程中,发现线段
与
的长总相等及四边形
的面积不会发生变化.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/7988597c-950c-41bb-b7ee-4b1e8f9306ca.png?resizew=188)
问题解决:
①请你帮他们说明
的理由;
②若
,请你帮他们求出四边形
的面积.
拓展延申:
(2)如图,连接
,当
,
时,那么直角三角板
在绕点
旋转一周的过程中,请你直接写出线段
长的最小值和最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711e331195e55e1c0133b0286d61a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6791aee96ff1579101462985839ec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5b3967aa677f18e92912d2397f4907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10134e7a46e6f6f7cb9d5e2371727d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711e331195e55e1c0133b0286d61a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
发现结论:
(1)如图,三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711e331195e55e1c0133b0286d61a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dda573d13d7cc0fb63ec05d41faef03b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5345f892125374809bcaaab5da8d3f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817610b69f5f7d96bdfc834d1dd699cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/817610b69f5f7d96bdfc834d1dd699cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5345f892125374809bcaaab5da8d3f5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53330c107f8245290a5a42c3d356acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ebabbf6a3b6da882eb237eefd61b26.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/7988597c-950c-41bb-b7ee-4b1e8f9306ca.png?resizew=188)
问题解决:
①请你帮他们说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51dfab0c1ec275ff83d08c7293968c4.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b79850d6b00a67110e77a33d1c46b5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31ebabbf6a3b6da882eb237eefd61b26.png)
拓展延申:
(2)如图,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b79850d6b00a67110e77a33d1c46b5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba027570795fdca25194fde38be3d29d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3711e331195e55e1c0133b0286d61a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/15/0ad255f4-3422-4455-b488-2bc88dc2c162.png?resizew=188)
您最近一年使用:0次
2022-11-14更新
|
96次组卷
|
2卷引用:浙江省舟山市普陀区普陀第二中学2022-2023学年九年级上学期11月月考数学试题
4 . 如图,在等腰三角形
中,
,点
为
的中点,连结
. 以
为边向左作
,且
,
. 连结
,记
和
的面积分别为
和
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3bbe4cdd2c154bd9a8073b0d4cecb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c631670e02d2a38e9c78708a3916140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e339b7a5068340e79fa2243dc29f64d.png)
A.4 | B.6 | C.![]() | D.8 |
您最近一年使用:0次
5 . 如图1,在正方形
中,
为对角线
上一点(
),点
,
关于直线
对称,过点
作
的垂线,分别交
,
于点
,
.
(1)求证:
;
(2)若
,
,求
的长;
(3)如图2,连接
并延长与
的延长线交于点
,连接
.若已知
,设
,用含
的代数式表示
的面积,并求出
面积的最大值.
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e5406f4916a15a54f9c5d148c96db8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/9b8d5258-cef8-45ef-bab3-8df08ae71517.png?resizew=437)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/675c0d81b31d7b09a36d62d68d3e4e13.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6acf4bf8e5ad8f3e9e7a312f65c1b9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d48852ad433b0da21abf5be0f79260d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)如图2,连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58ef478c804c71ad3b374196a8ca9d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6916f5928b337aa8c6bc8f5795487bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e175c2e4410cde9d5693e67d3bdccaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e175c2e4410cde9d5693e67d3bdccaf6.png)
您最近一年使用:0次
名校
6 . 根据以下素材,探索完成任务.
如何确定箭头形指示牌 | ||
素材1 | 某校计划在校园里立一块如图1所示的指示牌,图2为其平面设计图.该指示牌是轴对称图形,由长方形![]() ![]() ![]() ![]() ![]() ![]() | ![]() |
素材2 | 因考虑牢固耐用,小聪打算选用甲、乙两种材料分别制作长方形与三角形(两种图形无缝隙拼接),且甲材料的单价为每平方米![]() ![]() | ![]() |
问题解决 | ||
任务1 | 推理最大高度 | 小聪说:“如果我设计的方案中![]() ![]() |
任务2 | 确定箭头形指示牌 | 小聪发现他设计的方案中,制作广告牌的总费用不超过![]() ![]() |
您最近一年使用:0次
2022-12-13更新
|
106次组卷
|
2卷引用:浙江省温州市瑞安市安阳实验中学2022-2023学年八年级上学期双减背景下阶段性教学质量调研数学试题
名校
7 . 已知,点E是正方形
的边
上一个动点,直线
于点F,连结
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/899628c4-5714-40b6-81a0-7b9131391616.png?resizew=373)
(1)如图1,点E运动到边
的中点,求证:
;
(2)如图2,
的外接圆交
于点G,连结
,求证:
;
(3)如图3,已知正方形
的边长为2,设
,用y表示
与
的面积之和,求y关于x的函数解析式及其最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80125e48498ac9c548732e2af1b1758d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/899628c4-5714-40b6-81a0-7b9131391616.png?resizew=373)
(1)如图1,点E运动到边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14833dbeed409b33acd4c9071fd0be36.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4139b091e9dc432b267ff68420c77de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5700b71b3aa03e4a77922567b536289d.png)
(3)如图3,已知正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1dd8809233c90f66563c34f2164415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4139b091e9dc432b267ff68420c77de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473bc8c16695f150a3f387a43eabcc9b.png)
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8 . 文成县一支参赛队准备请一个刺绣师为他们的队旗绣一个队微,队徽是以“文”字的拼音首字母“W”为主要造型.如图,长方形EFPQ的长EQ=40cm,宽EF=18cm,整个图形关于直线AG对称,且AB∥CD,AD∥BC,BM∥EC,CF=12 cm,EM:BC=2:3.为使图案美观,EM不能超过AM的
.刺绣师准备在甲,乙,丙三个区域分别以不同的刺绣手法刺绣,其中甲区域是指“W”范围,乙区域是指“W”上方的两个三角形范围,丙是指整个长方形除去甲,乙的部分,设EM=xcm.
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932746647502848/2963097698770944/STEM/a3b01f51-4c86-463f-b936-a468b37fd91b.png?resizew=342)
(1)当x为何值时,丙区域的面积恰好为306平方厘米.
(2)求甲区域面积关于x的函数关系式,并求甲面积的最大值.
(3)若甲,乙,丙三个区域每平方厘米刺绣的针数分别为5n,5n,4n(n为正整数),甲乙的总针数之和比丙的总针数多15840针,则甲区域每平方厘米至少需要绣______针(直接写出答案).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2022/3/9/2932746647502848/2963097698770944/STEM/a3b01f51-4c86-463f-b936-a468b37fd91b.png?resizew=342)
(1)当x为何值时,丙区域的面积恰好为306平方厘米.
(2)求甲区域面积关于x的函数关系式,并求甲面积的最大值.
(3)若甲,乙,丙三个区域每平方厘米刺绣的针数分别为5n,5n,4n(n为正整数),甲乙的总针数之和比丙的总针数多15840针,则甲区域每平方厘米至少需要绣______针(直接写出答案).
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9 . 如图,在平面直角坐标系中,直线
分别交
轴,
轴于点
,直线
,垂足为点
为线段
上一点(不与端点重合),过点
作直线
轴,交直线
于点
,交直线
点
.
(1)求线段
的长;
(2)当
时,求点
的坐标;
(3)若直线
过点
,点
为线段
上一点,
为直线
上的点,已知
,连结
,
,求线段
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb0c03f142eb32f553465728efc42cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0a3eb2c6ae837f6b0b948c882fc2ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/771b610e4ddefa739a985d1e5462ce5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa69fd8445d01c98634c2e885b47d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11fc01344af3800a30595b9403086516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/4/8927eba2-5d1b-4c05-a30f-00a00fc1aea1.png?resizew=398)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe6d389a6c448d92b79d89bc9e8489f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b179495d07e4c38a8fccee2b0948dc4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d961216229afbd21c0e66e91fdbfe246.png)
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10 . 如图,O是平面直角坐标系原点,
,
,
,
,P为线段
上一个动点,连结
并延长至点E,使得点E落在直线
上,以
,
为邻边作
,则对角线
的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e236c1bce14d0225438e4ef85102076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba5762b748bde72fa0e2aa38ebda43ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced06b71073e1bb777f326f06016ce17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd3fd00798e7ec50afafe7fa7a4f42e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e4db29c92a9b5a324f782d63b9240b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
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