1 . 把不等式
在数轴上表示出来,则正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475bf0dbbccbde1f68f3cd6b96d71336.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 如图所示,
,
的顶点E,F分别在直线
、直线
上,点
在直线
与直线
之间,
平分
.
平分
,
,则
的度数.
(2)如图2,已知点
为
延长线上一点,且
,请用含
的式子表示
的度数,并说明理由.
(3)如图3,在(2)的条件下,
,将
绕点
顺时针以每秒
的速度旋转得到
,将
绕点
顺时针以每秒
的速度旋转得到
,当
首次旋转到直线
上时,
立刻绕点
逆时针以原速旋转,当
旋转到直线
上时,两个三角形同时停止旋转,请直接写出当
时的旋转时间
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68d65ed39a9dfd09c5b907b5de6b144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b59874dae8b394a4e434aa3875708a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f68e4414c9ab464bf433385c03705f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/038bbec1e7bcd942feae872dad93078f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a742abf1b0702125a0c77cbfbef118ca.png)
(2)如图2,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ae14c0bfb716dd9c9dfa3857fd43ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/068dcad9c70dc4d2fe2ad12b37e48556.png)
(3)如图3,在(2)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e3d866d3184289a8fa67ccba47d650.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8d1a9fee9d190cdcce759c163cf1f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee45d1d81d69ca1fd883b47ae2865fa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/796569b5b63924f0ebb27e92b79a7cb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68d65ed39a9dfd09c5b907b5de6b144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ac4980852f30486cf943a1f1797b9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a18e7d983c4f526c8d69778d6aa793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3184cd468586362043f15d3964991725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a18e7d983c4f526c8d69778d6aa793.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ecd837ef3895cf9e32a76cca7f714e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339e873a7cf61062521d90b40309a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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3 . 如图,直线
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f01e96b1c83f23ac249a3b2e863ded4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ba20b1444f524cf636961e4688ae8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 如图,已知
,射线
交
于点
,交
于点
,从点
引一条射线
,若
.
(请把以下过程补充完整)
证明:
(已知)
且
( ① )
② (等量代换),
③ ( ④ )
⑤
( ⑥ )
(已知)
⑦ ( ⑧ ),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b671ec535aca897737896faf797a670.png)
(2)根据(1)的结论
和
,我们也可以得出
,其理论依据是______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e53497af8899cb299d762f1a4f46a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7338856efe43dac491864dc1e9bdde90.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c08980b6afedc04aa04f385791f0163.png)
且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50cc9350a6e5e32b44fe509562afcbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32c86c60befa248291f5263cc8c2546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0f9620e8c3ebfda98372ead49f928ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39681f4995dc582a47459607cc6bbb64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e519cdb0cac3981d8e9610dba507a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe9353e99abfcf4048066770298aea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78163b1e78c917f86dc961a038329ff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b671ec535aca897737896faf797a670.png)
(2)根据(1)的结论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7338856efe43dac491864dc1e9bdde90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b96a3c1eea538ceea8ef695124afd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4354365ca0929f8a606ed0bf341e4ca.png)
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5 . 已知点P在第二象限,且到
轴的距离是5,到
轴的距离是4,则点P的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
6 . 下列方程中,是二元一次方程的是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 已知关于x,y的二元一次方程
有一组解为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bdbf18575d7334d87daa3f789c8fe8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5ffa7d767f601d0a064b412648593c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.3 | C.![]() | D.![]() |
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8 . 如图,三角形
在平面直角坐标系中,
为坐标原点,每个正方形格子的边长为
个单位,请完成下列问题:
各顶点的坐标.
(2)求出三角形
的面积.
(3)将三角形
先向右平移
个单位,再向上平移
个单位,得到
,画出
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)求出三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(3)将三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
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9 . 如图,已知
分别平分
,则
的度数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eaf22ff21f72699fad5677b141e202b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45df9d269bcb31d611dde62d2182686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4598486f8c5ac28b1165b76e78105979.png)
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10 . 已知点
和点
,若直线
轴,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f0385a34634dc389c744bd5dfe2311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c8fd6b4144a1ed2a8ad31cf85889df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc195a9f7ac138e5a1ad87d5fa201c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.2 | B. ![]() | C.![]() | D.0 |
您最近一年使用:0次