1 . 阅读理解:
如图,从的顶点出发,在
的内部作一条射线
,将
分得的两个角为
和
,其中至少有一个角与
互为补角,则称该射线
为
的“分补线”.请回答以下问题:
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33fd5e8829ef6234d057c398b7eafc7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210d4d13c1050456fda02ed137f6d529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
①当与
重合时,求
的度数;
②当为
的“分补线”时,请画出图形并求出此时
的度数.
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2 . 如图,直线
、
、
两两相交于点N,M,P.
平分
,
平分
,点G在直线
上,且
.则下列结论:①图中总共有9条线段;②
;③
与
互为余角;④
;⑤
的反向延长线平分
.正确的是______ .(填相应的序号)
![](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/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a8a837c11c07073da3ff751d70278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadaa018a95ded3269d77fa8013019ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08586eb788da81893225427206acab4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de81cc8481b73b3002e1391a019a0e22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1c404fdcc29268ac868f98525b308ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f3c32e4d8a6f9593080c4578bfc495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec23085596db8beffb543b69d5b41ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35bcae5aa6dd94aa2e194fa93e639a2.png)
您最近一年使用:0次
2024-02-04更新
|
245次组卷
|
7卷引用:专题01相交线(五大题型42道)-【好题汇编】备战2023-2024学年七年级数学下学期期末真题分类汇编(湖北专用)
(已下线)专题01相交线(五大题型42道)-【好题汇编】备战2023-2024学年七年级数学下学期期末真题分类汇编(湖北专用)湖北省武汉市东湖高新区2023-2024学年七年级上学期期末数学试题(已下线)湖北省知名中小学教联体联盟2023-2024学年七年级下学期第一次月考数学试题湖北省黄冈市知名教联体2023-2024学年七年级下学期月考数学试题湖北省黄冈市红安县2023-2024学年七年级下学期月考数学试题(已下线)湖北省黄石市大冶市刘仁八镇云台中学2023-2024学年七年级下学期月考数学试题陕西省渭南市澄城县2023-2024学年七年级下学期期中数学试题
23-24七年级上·福建厦门·期末
3 . 将一直角三角板的直角顶点放在直线
上的点
处,过点
作射线
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/2e29da8f-cfca-4f1a-b476-cb5ab98042a8.png?resizew=556)
(1)已知
,
①如图1,当
在射线
上时,
的度数为________;
②如图2,当
在
内部时,若
,求
的度数;
(2)如图3,
,
在
内部,
.在图中画射线
,使
为
的三等分线,且
.当
时,探究
与
的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/31/2e29da8f-cfca-4f1a-b476-cb5ab98042a8.png?resizew=556)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36c0d4e38748fbb4a6cf5e700e5e874.png)
①如图1,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588abe296d53dbbce91d0c693322bf8c.png)
②如图2,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4dca398548b4309d9ce0b1c95d865b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2f7bab4ed36ec5d04db3aeed2796f2.png)
(2)如图3,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de695812aaf81c235731535482ba204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0792165137108b528d993652f21f111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4cd68cc82e90a5e2049a7ea3171b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f554aad98cb16a2c249ac11b3f986c07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593f7ef97e9eda88dff0bca45e3f2a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35828e779161cfd0abdc1a2ec72a610c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5fe4b3778eaa75ee478c59520345fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2f7bab4ed36ec5d04db3aeed2796f2.png)
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4 . 已知:
,
,且
的补角等于
的余角,则下列结论一定正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42cf618a20aefaf81a0309478df80611.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ecc3e03ec935461ad9a16748600533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 我们定义有一条公共边的两个互余的角为“友余角”,现在
和
为一对“友余角”,
,则
和
的角平分线所成角的度数为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7589666adbc79ade91902c25d057c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
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6 . 综合与探究
如图①,直角三角尺ABC和直角三角尺ADE的顶点A重合,且顶点E,A,C在一条直线上,
,
,
,保持三角尺ABC不动,将三角尺ADE绕顶点A顺时针旋转(旋转至点E落在射线AC上时停止).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/6bb09e63-3431-4291-a795-6016db99524d.png?resizew=356)
(1)当三角尺ADE旋转至如图②所示的位置时,若
,求
的度数.
(2)当三角尺ADE旋转至AD在
内时(如图③),
与
之间有何数量关系?请说明理由.
(3)在旋转的过程中,当
与
互余时,直接写出
的度数.
如图①,直角三角尺ABC和直角三角尺ADE的顶点A重合,且顶点E,A,C在一条直线上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336eec58e134c64d47f26ec26146c091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76805974fefbe166b90d260e822ab5a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/29/6bb09e63-3431-4291-a795-6016db99524d.png?resizew=356)
(1)当三角尺ADE旋转至如图②所示的位置时,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d94adbca9b0bf9bc66ff8829337b62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
(2)当三角尺ADE旋转至AD在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
(3)在旋转的过程中,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060705794ef87cc71dac40c57f27b1d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2947ca8e0cdbeb4aab80ce9e7b63ba98.png)
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7 . 如图,
,下列说法中正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/2f537441-89ef-42f3-b250-babfdd3ea08f.png?resizew=210)
①
;②
,依据是等角的余角相等;③
;④当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551137582e6b5534016fe384b492b13e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e46e27ca861c8bfcfedc2604fa7b3bba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/2f537441-89ef-42f3-b250-babfdd3ea08f.png?resizew=210)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa2da622fcdc28ee85c08c5b0a4e3af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e50ce9ef89a466df68124a1dccff5663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cf924023611a27494b9d4f926fc7d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09c7dd1600eee571c32611ca39880ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551137582e6b5534016fe384b492b13e.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
8 . 如图,已知钝角
,射线
是
的平分线,按要求解答下面问题.
(1)画出图中
的平分线
,于是
________;根据图形,写出
与
的数量关系,即________________________;
(2)在图中画出射线
的反向延长线
;设
,用含
的代数式表示
的大小,即
__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/683c590673eece14fea3319c4fd5eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fed1f57a835af4e9022e27603d12d31.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/6f1305c0-c8d8-464d-95a2-b95af856398a.png?resizew=138)
(1)画出图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4756827cea3665a994e167474a3a12ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
(2)在图中画出射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e26492a62f9182d8ecd8bfeb0bb10b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cbee6d5731d6f4bb1e4f2ba3d89b7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b600f913d6d700bbd332b34220b78a21.png)
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9 . 如果两个角的和等于
,就说这两个角互为余角.如果两个角的和等于
就说这两个角互为补角.
(1)若
的余角是
,
的补角是
,则
和
之间有怎样的数量关系?
(2)若一个角的补角是这个角的余角的4倍,求这个角的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe639eab78eafd2d40ea70aa5d3f21d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780d8fd6c6c1deeeb45e15f639719e02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15417741fba20d681ab4414b07339099.png)
(2)若一个角的补角是这个角的余角的4倍,求这个角的度数.
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10 . 数学课上,小妹同学根据老师布置的任务,自己画了一个角,出于好奇,她又用量角器测量了角的度数,并通过计算发现,这个角的余角等于它的补角的
.小妹画的这个角的度数是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
您最近一年使用:0次