如图,
,
,
、
分别为线段
和射线
上的一点,若点
从点
出发向点
运动,同时点
从点
出发向点
运动,二者速度之比为
,运动到某时刻同时停止,在射线
上取一点
,使
与
全等,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/da09559d-296e-4d7c-84b7-3fc55cbc0c01.png?resizew=133)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41aba1711910c6f533cc94319104f4fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d65e051e943ab28fa57aee2fb57994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00870385ca7f3214e2971779eb4c7904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2ea13010e2399194be2a681310543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a7e4a6765ce78b05ee97764771e01f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/16/da09559d-296e-4d7c-84b7-3fc55cbc0c01.png?resizew=133)
A.2 | B.3 | C.2或3 | D.2或6 |
20-21七年级下·甘肃兰州·期末 查看更多[2]
更新时间:2021-09-09 19:42:46
|
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【推荐1】下列命题的逆命题是真命题的有( )
①全等三角形的面积相等;②
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,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e128d1acaeaf0dbdeb2fa3dfd06e7573.png)
①全等三角形的面积相等;②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
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A.0个 | B.1个 | C.2个 | D.3个 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】如图,
,
,则
的度数是( )
![](https://img.xkw.com/dksih/QBM/2022/1/16/2895793968693248/2935824342114304/STEM/7f0c6459-37c0-43ae-a14c-b471bf94aa05.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7524a67e47b7fd531ef03a12fe81500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da917e32be82a7d50c91aa07d285bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246a86f34603eaf2e6a948681b831b0d.png)
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A.30° | B.35° | C.40° | D.45° |
您最近一年使用:0次