如图,直线
,点P、Q分别在直线
上,点M在直线
与
之间,且满足
(其中
).
时,过点M作
,求
的度数;
(2)如图2,点H为线段
上一点(端点除外),点G在直线
与
之间,连接
,若
平分
与
互余,设
,
①请用含x,y的武子表示
;
②请从下列两个选项中选择一个正确的选项作为条件,求证:
.
(i)
;(ii)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85814f051a479a1b04a46f70e96557a.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/9cc735214232c26c66486beec79ff6ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b102a33ed7e9072c6d441fabb109a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a11ad48878228015776b17ddda7e81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cc9f041724e7fa6b08c717de02fc9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b537d1ae7648cdeebb5adf19721356d.png)
(2)如图2,点H为线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.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/d0e1d8ea9be7aca15a78d5f47fa00617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1783b61b275a96a94f7d045ae36081bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa712b9140804da541be17aaf336f34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55719858cd5fffccbd2933183a9f40f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c1921e8ae7d4d40eecbcae937594fcf.png)
①请用含x,y的武子表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efb88c47613788dfc014e521c8fdb0f.png)
②请从下列两个选项中选择一个正确的选项作为条件,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa16833f7376f26a61d56e74ce3777e4.png)
(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e2d38d7b5ede11679a6397e39a362a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b4d79380c82959ecd6ee12261d54ff.png)
更新时间:2024-04-29 21:27:43
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐2】(1)【猜想】如图①,
,点
在直线
、
之间,连结
、
.若
,
,则
的大小为 度.
(2)【探究】如图②,
、
、
交于点
,探究
、
、
之间的数量关系.
(3)【拓展】如图③,
,
、
分别平分
和
,且
、
所在直线交于点
,过点
作
,若
,则
度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d2b365fd3ae84b5355eaa01639e8baf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a9d4526ddf01eb414b7257661799b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb3de20ba8bda63c650ef571be155702.png)
(2)【探究】如图②,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b871a762469393cdd22f15aa49ebb8f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
(3)【拓展】如图③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfc2771aa0d5b97d2297f8a26a6f6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384d0a02d097ac7aa8a19e8da6f9767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf80148409afb32ced0b4f59f1ba709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0511f29b3f26a2b65b86bab53d20acd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5791c6156f87bb1892bd0111587fb92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ecfcab62c2a1b087b14ba521e7c0c3.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】(1)如图1,已知
,
,求
的度数.
(2)如图2,
,点P在
的上方,问
之间有何数量关系?并说明理由;
(3)如图3,在(2)的条件下,已知,
,
的平分线和
的平分线交点G,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42f9f5cc032f1ae4b8791b8ecc1b557a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa70e7c9ef8b856b494d370b7d76482.png)
(2)如图2,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc5d5c061ebe2775053160cc8940558b.png)
(3)如图3,在(2)的条件下,已知,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dddef81e3af08a62a69bc3e56a940bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ff8ae98a4922abf8c86c8028d9a067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7a09d2d1b9b9d4562d74196cef3e3ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e0a272aa29c4531aac22f28c64baf5.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】当光线经过镜面反射时,入射光线、反射光线与镜面所夹的角对应相等例如:在图①、图②中,都有
.设镜子
与
的夹角
.
,判断入射光线
与反射光线
的位置关系,并说明理由.
(2)如图②,若
,入射光线
与反射光线
的夹角
.探索α与β的数量关系,并说明理由.
(3)如图③,若
,设镜子
与
的夹角,
入射光线
与镜面
的夹角
,已知入射光线
从镜面
开始反射,经过n(n为正整数,且
)次反射,当第n次反射光线与入射光线
平行时,请直接写出γ的度数.(可用含有m的代数式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366662c4db40bdfa03d9c50cf07f2674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/597ce705d3a2fe04d29de9e81ec6250d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ac762a2899a58faa0d3ab44f1281fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
(2)如图②,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13b5ea2fc43b19ca043581eb94197234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42887d9bf31c1dd99f13c39e63c9ab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8bea54c9ce23e39275f2e79eca3839d.png)
(3)如图③,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d03f73bec20b60bc7608972607f5a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f42f501a0a9790705929044a4a3180.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0174eb8d33010515258144a33f4f27e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c84ab2ea2de85f4211d3b3aaee9fc84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
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解答题-证明题
|
适中
(0.65)
【推荐1】完成下面的证明.
已知:如图,
与
互补,
,
求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b687dd3fc2e0d0d9ff0e4f349a1a364a.png)
与
互补
即
,(已知)
// ( )
.( )
又
,(已知)
,即
.(等式的性质)
// (内错角相等,两直线平行)
.( )
已知:如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b4d5d66aaba050aaeec66400269ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269d3e7a10864d85369753d20752f9af.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b687dd3fc2e0d0d9ff0e4f349a1a364a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0994d18a29833768dee7c86616b04b3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91b4d5d66aaba050aaeec66400269ba6.png)
即
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de79cb0cafd88421bdc944952b163906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/156583a0b826b8d7631b7a27d6395405.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/056c9534881b6739c9fcc7c4ff103abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1104f0efaaf448676d9bba58a1860377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03dc3c857785c26b9a2958424838621e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/415b9b85e65e0b04b8892b3bab154b75.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】如图 BC∥DE,∠B=∠D,AB 和 CD 平行吗?填空并写出理由.
![](https://img.xkw.com/dksih/QBM/2018/12/9/2093220062412800/2094640917143552/STEM/440dc30739174e80856bfc162629b406.png?resizew=129)
解:AB∥CD,理由如下:
∵BC∥DE( )
∴∠D=∠ ( )
∵∠D=∠B( )
∴∠B=( )( )
∴AB∥CD( )
![](https://img.xkw.com/dksih/QBM/2018/12/9/2093220062412800/2094640917143552/STEM/440dc30739174e80856bfc162629b406.png?resizew=129)
解:AB∥CD,理由如下:
∵BC∥DE( )
∴∠D=∠ ( )
∵∠D=∠B( )
∴∠B=( )( )
∴AB∥CD( )
您最近一年使用:0次