在矩形
中,
,
,点
为
上的点,且
,连结
.点
为
的中点,点
为
上的一动点,连结
,过
点作
,交
或
于点
,连结
.
![](https://img.xkw.com/dksih/QBM/2022/1/10/2897741297942528/2944407701733376/STEM/00ed9321-3bf6-4d73-ab83-2e1367d368d1.png?resizew=566)
(1)如图1,当点
与点
重合时,求
的长.
(2)如图2,当
时,求
的长.
(3)如图3,点
从点
出发,当
的长为
时,点
停止运动.请直接写出
的中点
的运动路径长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73c8eb1132647aba0881ecb581c1d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84756764173829ecd7d0272785c7e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://img.xkw.com/dksih/QBM/2022/1/10/2897741297942528/2944407701733376/STEM/00ed9321-3bf6-4d73-ab83-2e1367d368d1.png?resizew=566)
(1)如图1,当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(2)如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df3c9c1bfe8a9a52f2d3708dd88b8eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
(3)如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
21-22九年级上·浙江衢州·期末 查看更多[2]
更新时间:2022-03-26 09:55:42
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相似题推荐
解答题-问答题
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【推荐1】如图,
中,
,
,
.
(1)直接写出
的长度______.
(2)设点
在
上,若
.求
的长;
(3)设点
在
上.若
为等腰三角形,直接写出
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0566be94b1ed3e5d250ca530eeb529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
(1)直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd23ae4b8e7d4a60f38fc8e87fbc04e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad3e2b2689dfe97ec82d473ab6cf469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://img.xkw.com/dksih/QBM/2021/5/10/2717918612512768/2791737016000512/STEM/a95b2d05-9d17-48a2-af02-ad296adb95ae.png?resizew=286)
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【推荐2】如图,
,
,D,E分别为
,
的中点,
,点F在
的延长线上,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/13416b0c-01da-4573-b1ba-63aa7254ee8e.png?resizew=124)
(1)求
的长;
(2)求四边形
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76c12c9cc215d436e53a59d2464430b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b71cad1e45075b7222bb94d91fa5670.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/5/13416b0c-01da-4573-b1ba-63aa7254ee8e.png?resizew=124)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48a61d8bedef61745ee4fd89a8c0c119.png)
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【推荐1】如图,
是圆
的直径,
是
延长线上一点,点
在圆
上,且
,
的延长线交圆
于点
,若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/970cff8f26c009cc869e63e44334bd2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.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/ee25fff2ee1c3c5b74388295a558f6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7307ac7510cf35f74337d368b94da4e5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/13/9cd420ce-e263-4dea-a0a6-aeafb295645b.png?resizew=167)
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【推荐1】如图,某同学利用镜面反射的原理巧妙地测出了树的高度,已知人的站位点A,镜子点O,树底点B三点在同一水平线上,眼睛与地面的高度为
米,
米,
米,则树高为多少米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f0ef824845a450279d4af3b998b95c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fa64574d86c6152532412091ce6abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e2857963e3ea3578e9a13638c3a2c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/f61c64ba-0893-44be-a2f0-343f9b7bf04d.png?resizew=210)
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【推荐2】已知:如图,在
中,
平分
交
于
,点
在
的延长线上,
.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fd6087ff96eac9acbd6ee75bb1e46.png)
(2)过点C作
交AE于点F,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.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/8455657dde27aabe6adb7b188e031c11.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/38ac49caae8e3b8869d19beeff98966e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/16/baf734a8-ed5c-4f94-96ca-384c6b9bf819.png?resizew=176)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21fd6087ff96eac9acbd6ee75bb1e46.png)
(2)过点C作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d5e4889eecada5e0469c7834ee06ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c92c4e19fe499b7165753455e82f4285.png)
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【推荐1】如图,已知某吊车吊臂的支点
距离地面的高度
米
当吊臂顶端由A点抬升至
点(吊臂长度不变)时,地面
处的重物(大小忽略不计)被吊至
处,紧绷着的吊绳
,
垂直于地面
于点
,
垂直地面
于点
,吊臂长度
米,且
,
.
(1)求此重物在水平方向移动的距离
;
(2)求此重物在竖直方向移动的距离
(结果保留根号,参考数据:
,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c736e1a2b1d42a7370210eb827a11e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303794c16519f5fe0b54f42ded9c1d87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913d2a71d4012f2e38a2fc3a1d33d389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb0628cecbfc98d390e5447d52414e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913d2a71d4012f2e38a2fc3a1d33d389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb0c1ec76155c9289df61e86148ac19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d093df1a3c3e3a1375d0b32acf712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a87252393b0ce3a3f4dfaeb4ea3956bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/15/84c4e9c9-801a-4113-9405-53d10356b465.png?resizew=172)
(1)求此重物在水平方向移动的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(2)求此重物在竖直方向移动的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020ebe1219437129358b986eb9e70bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94db197f1ac6b6e1184e677f8f7b8d3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6068e49ccc9c5ad6a7a8cbe4fd76e7d0.png)
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【推荐2】如图,在平面直角坐标系中,O为原点,点
,点M在第一象限内,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/c9efacab-1633-4da9-b945-aa568e9c852c.jpg?resizew=166)
(1)求点M的坐标.
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96428d61b450c1a62f12a2e411c67b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc96d5e84e526643a2d674779888b302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61a4b53aff3ffb51501aef1a40a279f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/c9efacab-1633-4da9-b945-aa568e9c852c.jpg?resizew=166)
(1)求点M的坐标.
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66ffc19775a901b46f16d2d8973362d.png)
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