在四边形
中,
,
,
,
.
的度数.
(2)求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37750daa8ba3b3fe3e9e2092f81c848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2594e927cb7ed022acc039c3bb136d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a65b94de267eb6858634181642c65c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
更新时间:2023-08-03 21:08:16
|
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】如图,
中,
,D是
上一点(不与A、B重合),
于E,若P是
中点.
(1)请判断
的形状;
(2)若
,且
,
,试求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c10d461a7c0b86a2f09c2ea17f38260e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bffd657e48b15b9b54a55817e2c26b22.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/21/c34e92a6-2df3-48b3-9e24-a87ced4e6bad.png?resizew=107)
(1)请判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe40405cd7bd60d69dd535d6da85c00.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/392b9e1a179a6676362679354a9e7e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf7679c8b4b1e442ce4286d4b0e9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0763b031b7e6b6d87ce3554ac482d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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解答题-证明题
|
较易
(0.85)
【推荐2】如图,在
中,
,
,
是其内部一点,
平分
,连接
,在
上取一点
,使
,连接
.
![](https://img.xkw.com/dksih/QBM/2020/11/2/2584234017480704/2585585488281600/STEM/84772582-77b2-4404-9b55-f07c2fe97e13.png)
(1)求证:
≌
;
(2)若
,连接
,求
的度数;
(3)若
是
的内心,过
作
于
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1682d306c38087d9e6f7efb9cec596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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![](https://img.xkw.com/dksih/QBM/2020/11/2/2584234017480704/2585585488281600/STEM/84772582-77b2-4404-9b55-f07c2fe97e13.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace07d078895165cf28b921e3c037247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72f0f038ebe04ea9441bd5eedf069806.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e3931efe93bc6aa9110a233efb1ae9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8407954a328c08add8decf551fa4340d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a89efb10e95245a41f6c7a80189528.png)
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解答题-问答题
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【推荐1】已知抛物线过A(1,0)和B(4,0)两点,交y轴于C点,且BC=5,求该二次函数的解析式.
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】如图,
和
均为等腰直角三角形,
,A,C,D三点在一条直线上,延长
交
于点F.
;
(2)若
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a0acc93490a6a784eb62201d93dd93d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc75953bf5dcfa4af308c34bf9952d3.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e8a0c5f4a95fb2699860fd3f638737e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
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您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】已知a=
,b、c满足
+|c-
|=0.
(1)求b、c的值;
(2)试问以a、b、c为边能否构成直角三角形?若能,求出三角形的面积;若不能,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fddc54a97358fd2b2ff6f8376413a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7b5b2334f861cdf491920dc00777a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de31a7b108b0fdc888133f701e7c79b3.png)
(1)求b、c的值;
(2)试问以a、b、c为边能否构成直角三角形?若能,求出三角形的面积;若不能,说明理由.
您最近一年使用:0次
解答题-问答题
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较易
(0.85)
【推荐2】若
的三边长a、b、c满足
,利用所学知识判定
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79889f5194662f431a28bdf47aa453f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次