如图,在
中,
是角平分线
,
的交点.若
,
,则
的值是 __ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1285b0c1e6048791195ea2451b43c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/6eeb0c8df3d8c5260768c5e407b3583a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b939af5ba06e279cce39396aaf0fae06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204afea6e1263873c2d8370a5f8e1f3f.png)
22-23九年级上·辽宁大连·阶段练习 查看更多[3]
辽宁省大连市西岗区第三十四中学2022-2023学年九年级上学期10月月考数学试题(已下线)第06讲 锐角三角函数-【帮课堂】2022-2023学年九年级数学下册同步精品讲义(人教版)2024年浙江省金华市九年级中考三模数学试题
更新时间:2022-11-08 15:29:19
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【推荐1】如图,有垂直于地面的两个木箱,高度分别为
,
,两个木箱之间恰好可以放进一个等腰直角三角板(
,
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【推荐2】如图,半径为3的⊙O中,弦
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_______ .
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【推荐1】如图,
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交
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【推荐2】如图,在菱形
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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【推荐2】菱形的两条对角线长分别为方程
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【推荐1】如图,点A1,A2,A3,A4,A5,…,在射线ON上,点B1,B2,B3,B4,…在射线OM上,点C1,C2,C3,…分别在线段A2B2,A3B3,A4B4,…上,且四边形A1B1C1A2,四边形A2B2C2A3,四边形A3B3C3A4,…均为正方形,若OA1=4,A1B1=2,则正方形A2021B2021C2021A2022的边长为_____ .
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712444993101824/2716108457492480/STEM/9d3f104678ef4736b807b73a53eae1fe.png?resizew=232)
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【推荐2】如图,在正六边形ABCDEF的上方作正方形AFGH,联结GC,那么
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