1 . 如图,P为等边
内一点,且
,M、N为边
上的动点,且
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0142199558c76160f7fc4bde6d7283e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d54431bbb28ebd98db5c1dc6083a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2765917637583d22a579ff075f9baa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bb1548ddc0e5536a35b1bd78c4e7cd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/12/6f26042f-d2f8-4689-8f89-5daea8727630.png?resizew=137)
A.10 | B.8 | C.6 | D.4 |
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2023-10-27更新
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180次组卷
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3卷引用:陕西省西安市曲江第一中学2023-2024学年九年级上学期开学考试数学试题
名校
2 . 如图,在锐角
中,
,
的面积为21,
的平分线交
于点D,M、N分别是
和
上的动点,则
的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f186ea827f7becafd1ac4955e22c6812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95e98288acdd662de9a3dae1fcf0368.png)
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2023-07-18更新
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371次组卷
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4卷引用:2023年陕西省西安市碑林区西安市第六中中考模拟数学试卷
3 . 如图,
中,
,
,
,
,
;垂足分别为点F和E.点G和H分别是
和
上的动点,
,那么
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f5eec0addba78f2e0cdfb7ecc59a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa30a9ee227af2b387cf6e028c20d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b937442ad4cc480adc11bb143559454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/912ec2726c1c57bbc7c2d44e8a674a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1555d23a11970d272f72fa7eb1ffcba8.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/7/9f90a2bb-64f8-4fa4-8163-1fc39d203bc2.png?resizew=191)
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名校
4 . 问题提出
(1)如图1,已知点
为线段
上一动点,分别过点
作
,
,连接
. 若
,
,
,则
的最小值为 ;
问题解决
(2)如图2,某公园规划修建一块形如四边形
的牡丹园,其中
,
,
,
,
,
的内心
处修建一个圆形喷水池,公园的入口
是
的中点,
是一条观赏小道,其余部分种植牡丹,现需要在
边上取点
,
上找点
,修建道路
为了节省成本,需要使修建的道路最短,即
的值最小,是否存在这样的点
,使得
的值最小? 若存在,请求出其最小值;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/19/9bd8e23a-d34f-4e4d-b6fc-72f1436123d4.png?resizew=424)
(1)如图1,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757942f619e1f8d5296438829fb11b34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8915e8e775538d41debf1933102c6b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5daa413c5a1b941452121c5d750a03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e46a7f185146052971adaeb14b3694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18444ec3e5e3b8a0cf488732c34866d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7225d7b261d697f92c76119bc2bd8c0d.png)
问题解决
(2)如图2,某公园规划修建一块形如四边形
![](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/8f89deb952f57f4b3fa4887b098b7b91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998329f9cdb86f5d60d7d5d70fc3781e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e81e88dbb23b243ce28429ce9e2353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a16dc02090b6e9263555061f14fbc8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6483ebae422a8aa8110f65cd61eb7b0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54249b32f5db8aab778f03b5774e652f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6a87e27527e02b002e08b53ca27de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54249b32f5db8aab778f03b5774e652f.png)
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5 . 如图,在四边形
中,连接
,
与
互余,
、
分别是
、
的中位线,连接
,
,若
,
,则线段
的最小值为______ .
![](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/4189a0821a0ffab9dc171ecd279ba442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7ac5396c5ea442e0364b50c1db3d2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166c46d68d567af5cc92d33a1540b687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acd79bb9fb06f7c806eb6e17e4b613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/21/d3c59b4c-170d-4ff1-864f-fe76697b8cfc.png?resizew=272)
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6 . 如图,直线
平分正方形
的面积,直线
分别与
、
交于点
、
,
直线
于
,连接
,若
,则
长的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39748bd3de9c56dfbe313e65645db6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080ca48cd27d4bf9d9ef084b558fc17a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/6/df71866a-ea92-485a-88a4-80f4fe883292.png?resizew=161)
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解题方法
7 . 如图,在
中,
,
的面积为12,
的垂直平分线
交
于点F,若D为
边的中点,M为线段
上的一动点,则
周长的最小值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d089b421d2a68b155e77aa0aed66f62d.png)
![](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/49b50357a6545cae8348e3059312f520.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a1219bc313db46b07bbd68600267a4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/dc34cf3d-10fb-429e-991c-3883a6b247df.png?resizew=162)
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2023-01-13更新
|
643次组卷
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6卷引用:陕西省宝鸡市渭滨区2021-2022学年八年级下学期期末考试数学试题
陕西省宝鸡市渭滨区2021-2022学年八年级下学期期末考试数学试题人教版2020年九年级中考数学重点模型7(已下线)模型七 利用两点之间线段最短求最值河南省驻马店市汝南县2022-2023学年八年级上学期期中数学试题山东省德州市宁津县2022-2023学年八年级上学期期末数学试题(已下线)13.3(培优课)将军饮马模型(题型精讲精练)-【题型分类精粹】2023-2024学年八年级数学上学期期中期末复习讲练系列【考点闯关】(人教版)
22-23九年级上·四川绵阳·阶段练习
8 . 如图,已知:
,
,P是
上的一个动点,
的最小值为 _____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0061285e8b6d5d30f678a46897dfb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d269dac71ea78cf60747f06542467507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f320075cb747d3a747bb6dd87c4814.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/f70c76bd-9e86-43ff-b19a-65269784485f.png?resizew=185)
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名校
9 . 如图,在四边形
中,
,对角线
,设
,则
的最小值为 ___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41886348be8425d620314828971cdb03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bac3d7f258d4855bafdd32da8fa7c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3bdc240e2a2d2a9b8e9a75d7df6122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15befbdad977723a86194979c675ee5d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/26/f0086948-fd83-47f8-89ab-9a9d1c4662bc.png?resizew=178)
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10 . 如图,在
中,
是
的垂直平分线,P是直线
上的任意一点,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8990537bf2ff98d88f4f83aea3eedbab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6da6b8007e3953e3884d3c601684a77.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/d64d7fbf-703f-4c79-801c-d67f441af85d.png?resizew=160)
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2022-10-29更新
|
198次组卷
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4卷引用:陕西省渭南市澄城县2023-2024学年八年级上学期期末数学试题