名校
1 . 在初中阶段的函数学习中,我们经历了“确定函数的表达式—利用函数图象研究其性质”函数图象在探索函数的性质中有非常重要的作用,下面我们对已知经过点
的函数
的图象和性质展开研究.探究过程如下,请补全过程:
(1)①请根据解析式列表,则
______________,
______________;
②在给出的平面直角坐标系中描点,并画出函数图象;
(2)并写出这个函数的一条性质:______________________________;
(3)已知函数
,结合两函数图象,请直接写出当
时,自变量
的取值范围_________________________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c63f9522aa44add2a2d3c2acd6a795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54dd24e3a83a7663f0c4dd1cb9246170.png)
![]() | ![]() | ![]() | ![]() | ![]() | 0 | 1 | 7 | 9 | ![]() |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | 0 | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
②在给出的平面直角坐标系中描点,并画出函数图象;
(2)并写出这个函数的一条性质:______________________________;
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56e2ad86ac48fd306494bb31bc34410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df86b0da538701c08fb214608e062372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/9/ca763303-c888-4fda-bc12-41480bd051e1.png?resizew=419)
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2 . 如图,四边形
是平行四边形,E为
上任意一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/304dd5a3-182e-480a-a5e2-7e448d05a2b3.jpg?resizew=323)
(1)如图①,只用无刻度的直尺在
边上作出点F,使
;
(2)如图②,用直尺和圆规作出菱形
,使得点F、G、H分别在边
、
、
上.(不写作法,只保留作图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/4/304dd5a3-182e-480a-a5e2-7e448d05a2b3.jpg?resizew=323)
(1)如图①,只用无刻度的直尺在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40b3bf6b27f936e0747de92151a1f77.png)
(2)如图②,用直尺和圆规作出菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
您最近一年使用:0次
名校
3 . 如图,在菱形
中,按以下步骤作图:
①分别以点
和点
为圆心,大于
为半径作弧,两弧交于点
,
;
②作直线
,且
恰好经过点
,与
交于点
,连接
.
则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/8336477d-95ea-42ae-aae2-c11300d92562.png?resizew=179)
①分别以点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b840be5852709e18ea985954545e78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
②作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
则下列说法正确的是( )
A.![]() | B.![]() |
C.若![]() ![]() | D.![]() |
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4 . 如图,四边形ABCD为菱形,延长AB至点E,使得BE=AB,过点E作EF∥AD,交DB的延长线于点F,请仅用无刻度直尺 按下列要求作图(保留作图痕迹).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/b8790470-7046-45c0-a687-15c24433c674.png?resizew=404)
(1)在图1中,过BD的中点作直线l∥AE.
(2)在图2中,作出一个矩形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/b8790470-7046-45c0-a687-15c24433c674.png?resizew=404)
(1)在图1中,过BD的中点作直线l∥AE.
(2)在图2中,作出一个矩形.
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5 . 如图,已知钝角
,依下列步骤尺规作图,并保留作图痕迹.
步骤1:以
为圆心,以
为半径画弧①;
步骤2:以
为圆心,以
为半径画弧②,交弧①于点
;
步骤3:连接
,再连接
,与
的延长线交于点
.
下列叙述正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/e1e792ac-50ed-4f26-8e10-3364c6767ad2.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
步骤1:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
步骤2:以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
步骤3:连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb9b29668bafeccf32ca33022e96d16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
下列叙述正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/e1e792ac-50ed-4f26-8e10-3364c6767ad2.png?resizew=145)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() |
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6 . 如图是
的正方形网格,请仅用无刻度的直尺按要求完成以下作图(保留作图痕迹).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/40e9dd31-8997-4273-885f-5b1f0800ded1.png?resizew=229)
(1)在图1中作
的角平分线;
(2)在图2中过点
作一条直线
,使点
,
到直线
的距离相等.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb9d60d456560e9bac66c8b20c49bb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/40e9dd31-8997-4273-885f-5b1f0800ded1.png?resizew=229)
(1)在图1中作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)在图2中过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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7 . 如图,四边形
是平行四边形,
是对角线
(1)基本尺规作图:过点
作
于点
,再在线段
上截取
.(尺规作图,保留作图痕迹,不写作法)
(2)连接
、
、
,猜想四边形
的形状,将下面的推理过程补充完整.
证明:∵四边形
是平行四边形,
∴
,①__________,
∴
.
在
和
中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72179b99f0b14e4e04214adbb0c02bc7.png)
∴
,
∴
,②___________.
∴
.
∴③__________
∴四边形
是④__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/16/f66a9bfd-cb31-451c-9aff-c00ef3f283f4.png?resizew=169)
(1)基本尺规作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d320f180419175d75eebc618cc458b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607cfabc1d421835b6b64109ad18f571.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2330c01a4d2b5b20f106e3e48834d5c0.png)
证明:∵四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb27272b4eb9ed057dd3b4d40697e7c.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e1dc3473ec67beb52aaaba5645cacb.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72179b99f0b14e4e04214adbb0c02bc7.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d99bb3ab66b8884bf23cffe1bddcb33.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92034dd2bb9480b18709d01153467f8f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc61ded2b8ea5dea2fd9bc17c409a59c.png)
∴③__________
∴四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466a12cf2d11494ec4f7173e904932a9.png)
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8 . 如图,已知点
是平行四边形
对角线
上的点,连接
,过点
在平行四边形内部作射线
交
于点
,且使
,连接
、
,证明四边形
是平行四边形.解答思路:利用平行四边形的性质得到线段和角相等,再通过
与
全等得边角关系,然后利用一组对边平行且相等使问题得到解决.请根据解答思路完成下面作图与填空:
(1)尺规作图:过点
在平行四边形内部作射线
交
于点
,且使
,连接
、
(保留作图痕迹,不写作法与证明);
(2)证明:∵四边形
是平行四边形,
∴
① ,
,
∴
②
在
与
中,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fe5dd2076e867091f76ab1933f476.png)
∴
,
∴ ③
,
,
∴ ④ .
∴四边形
是平行四边形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b85b80faacc025432902f23e0e6328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87e1fe20bb0e8292e993657e14bc79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4ce3f962c91f0d3c7b998b5fbb37b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/13/e0b0db79-9434-47be-a0fc-9f56c6ec25f2.png?resizew=180)
(1)尺规作图:过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b85b80faacc025432902f23e0e6328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
(2)证明:∵四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f63d194aa0d4091618b6f41f569ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e910dce5a57ff0d917e0b4dd620214.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4ce3f962c91f0d3c7b998b5fbb37b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fe5dd2076e867091f76ab1933f476.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5678d84003aa65600ea6ab585ef51f1.png)
∴ ③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6205d261fa971443800a46da551253d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b4ab2a78043a634daa576c6f098faf.png)
∴ ④ .
∴四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f3c15b30bd155641e548a7d8c172dd4.png)
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9 . 小明在学习矩形时发现:在矩形
中,点
是
边上一点,过点
作
交边
于点
,若
,则
平分
.他的证明思路是:利用矩形的性质得三角形全等,再利用边角转化使问题得以解决.请根据小明的思路完成以下作图与填空.
(1)用直尺和圆规,过点
作
的垂线交
于点
;(只保留作图痕迹)
(2)已知:如图,在矩形
中,点
是
边上一点,过点
作
交边
于点
.求证:
平分
;
证明:
四边形
是矩形,
,
①_________________
.
,
,
,
②_________________.
又
,③_________________,
④_________________
.
.
又
,
,
.
⑤_________________,
.
.
平分
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992a19339adac3a2f1aab1fbc11b1c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f805768a5ffaf8bdfa4bc3b680aafdc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/6/9eb8f234-3821-48d3-8637-3cca31a02ef7.png?resizew=155)
(1)用直尺和圆规,过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)已知:如图,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992a19339adac3a2f1aab1fbc11b1c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b48e4874d9f210d8ce6ee784a47e8588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deeeb5318d4077995233dabb715f854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c515a84858c394146ed2ca984916cdf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587aa905348cc7cd1333e7472a57430a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f95cf1631aee3f6b55b0435e1da9442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d80f47b98c1b4bc66cc0bc86c2cd2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de0d10ef8b748d4531250c37c5d3f9e.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7a0621aafbc7e55cd6f6b9686c214b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a755b788551f0f6d022f1b6ba557dd8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b68af712817ab23370b394227723e61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a54012359305f6200e9811a4e03ab3f.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9dd6147fd83173b71cc7467e481b3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0091d0711859cb2c619b8c3846c44051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9287a2c4832bc0c48c9768acc6aa5ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f3d198e76391779fa3badc848c8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f4108d0dfb537295bbd3f08b407be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18184310094795a3abb3a09974ab8b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6911a6519903fb7e464ab74e873996a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.png)
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10 . 已知,在
中,
,如图,(1)分别以B,C为圆心,BC长为半径作弧,两弧交于点D; (2)作射线AD,连接BD,CD.根据以上作图过程及所作图形,下列结论中错误 的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dc9795efa99b6fb9fdf9778085dab.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/16/c0938662-ec1e-426d-8a4f-92a432acacb3.png?resizew=130)
A.![]() | B.![]() |
C.AD垂直平分BC | D.![]() |
您最近一年使用:0次