如图,平面上有
与
,其中
与
相交于P点,如图,若
,
,
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfa1a2af7e38d33634c462300df381f.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/ac196efc8888e18579a2dab20beaae91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dfc059ebc028191cd7bc07979a14897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abc36b560293b59ee54733e04b478f08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbf1667b21a273bf5dd007d65eeda7c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/12/ce0e4d58-a555-4eee-a894-13febf7f0a5b.png?resizew=146)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-11-03 15:05:52
|
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【推荐1】如图,等腰三角形
中,
,
,线段
的垂直平分线交
于点
,交
于点
,连接
,则
等于
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81a9afe4b588fccd34b74b0f765a7c7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d29e7c4d6216690152430b09f9cf0c2.png)
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416711612014592/3452601772965888/STEM/153768858625406d8c63571f75804f79.png?resizew=4)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/13/49ad8d9b-e026-4246-b7e1-36ac58aa09e9.png?resizew=104)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】如图,在
中,
,
,
为
上一点,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9eb19ce88898209c08c280605a42aed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/24/03f85238-2e02-47fe-a3a5-99f6b067e35b.png?resizew=274)
A.8 | B.7 | C.6 | D.10 |
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单选题
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适中
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【推荐2】如图用尺规作“与已知角相等的角”的过程中,作出
的依据是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093756d827f63ef02684b677aa421da9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/859b5deb-9feb-4976-a508-51bd080a4bc6.png?resizew=277)
A.SAS | B.ASA | C.AAS | D.SSS |
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单选题
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适中
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【推荐1】如果把一个多边形的边数增加一倍,它的内角和是2520°,那么原来多边形的边数是( )
A.6 | B.7 | C.8 | D.9 |
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单选题
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适中
(0.65)
【推荐2】下列说法正确的有
①
的值在3和4之间;
②当
时,关于x的一元二次方程
有两个相等的实数根;
③命题“对顶角相等”的逆命题是真命题;
④十边形的内角和为1440º;
⑤等边三角形既是轴对称图形又是中心对称图形.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69cc976b61bea20182676fe4d4085b2f.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c085e2b53294f8ec0171baaf9d9f97.png)
③命题“对顶角相等”的逆命题是真命题;
④十边形的内角和为1440º;
⑤等边三角形既是轴对称图形又是中心对称图形.
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次