随着“科学运动、健康生活”的理念深入人心,跑步机已成为家居新宠,某品牌跑步机(如图1)的跑道可以旋转(如图2),图3为跑道
绕
点旋转到
位置时的主视图,其中
为显示屏,
为扶手,点
在直线
上,
为可伸缩液压支撑杆,
的位置不变,
的长度可变化,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
______
.若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aba95485ff8041dd63461298a7e8fb3.png)
,且
恰好在同一直线上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
_______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0f067a2a348ceb24a408f82992eab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fd412f6c77af5b5d55133aa7509ea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aba95485ff8041dd63461298a7e8fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a20e9a6f5edec560a76ac36f71d543e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70f3962301930318180c933480b9b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97153bc3d02dfb38ee046487a8037a41.png)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701004883066880/2705969256005632/STEM/05a3fb47-7b3a-4dbb-8b40-9398c4113bd1.png)
20-21九年级下·浙江·期末 查看更多[5]
(已下线)【新东方】【2021.5.20】【WZ】【初三下】【初中数学】【WZ00158】2021年浙江省乐清市初中毕业升学适应性考试数学试题2021年浙江省温州市乐清市中考数学适应性试卷(已下线)【新东方】【2021.6.16】【omo】【初三下】【数学00128】(已下线)【新东方】 【2021.6.16】【omo】【初三下】【数学00087】
更新时间:2021-04-23 12:51:27
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【推荐1】如图,
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【推荐2】如图,在矩形
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;⑤
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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①
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【推荐1】如图,在正方形
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【推荐2】如图,在△ABC中,AB=AC,∠BAC=90°,点D为射线CB上一点,连接AD,以AD为一边在AD右侧作正方形ADEF,直线EF与直线BC交于点M,若AB=2
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