如图,在矩形
中,
,
的平分线交边
于点
,
于点
,连接
并延长交边
于点
,连接
交
于点
.给出下列命题:①
;②
;③
;④
.其中正确命题为( )
![](https://img.xkw.com/dksih/QBM/2017/4/28/1675565731217408/1735703896727552/STEM/493358487bae4cb39e16a4024dc11023.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1affed1ad8e53a73308c85849a72444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3981e7286d41960daf4e110c1c84e03a.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/b23393d953a5bcb37b595caba358f34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6655e2fa64a32cd12fe0279afd65d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c440633b9f8995e783e0f0afe393ac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/394613c9125b6d59da78a975eca558d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6928337d79f9f3cc9463a95ea53717a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c7cdf7bf27616a15ed0c09f3afd85b.png)
![](https://img.xkw.com/dksih/QBM/2017/4/28/1675565731217408/1735703896727552/STEM/493358487bae4cb39e16a4024dc11023.png?resizew=185)
A.①② | B.①③ |
C.①③④ | D.①②③④ |
更新时间:2017-07-22 16:41:31
|
相似题推荐
单选题
|
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(0.4)
名校
【推荐1】如图,正方形
中,点E、F分别在
上,
是等边三角形,连接
交
于G,下列结论:①
,②
,③
垂直平分
,④
,其中正确的结论有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/690b6503-f13e-4f2b-bc6d-a398e17aae0e.png?resizew=146)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20cb2c77ea29b6eabbc477bc3743859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92034dd2bb9480b18709d01153467f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3c13d921d69e148a91ff7a46f657ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6a3bec28b97f9688583594adb6d8cf4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/1/690b6503-f13e-4f2b-bc6d-a398e17aae0e.png?resizew=146)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图①,在正方形ABCD中,点E是AB的中点,点P是对角线AC上一动点,设PC=x,PE+PB=y,图②是y关于x的函数图象,且图象上最低点Q的坐标可能是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/a3a04cda-c2c8-4574-af8a-624292e1e002.png?resizew=306)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/a3a04cda-c2c8-4574-af8a-624292e1e002.png?resizew=306)
A.(![]() ![]() | B.(2![]() ![]() | C.(4,3) | D.(4![]() ![]() |
您最近一年使用:0次
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【推荐1】如图,在正方形
中,
,
为对角线
上与点A,
不重合的一个动点,过点
作
于点
于点
,连接
,下列结论:①
;②
;③
:④
的最小值为3,其中正确的结论是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab00e0cff0876c4183a47f1272cf9928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef652751e2da2d9a74451cc66b64aa79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4914fef4302bc558cbe6bad66de49ad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c369f94a6056d114f95432968a7e666f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b8982d1dd4b3024952e2d7f297650f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b34da0bafac21a66f7e5d3e42aba8e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
A.①②③ | B.①②④ | C.②③④ | D.①③④ |
您最近一年使用:0次
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【推荐2】如图,P是正方形
的边
右侧一点,
,
为锐角,连
,
,
的平分线交
于Q点,过点B作
交
延长线于点E,连接
,则以下结论:
①
;
②
;
③
;
④若点D为
中点,
,则四边形
的面积为
,其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436ac37109fc061e35157083fd1093ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d221944148d71e2e1bc76040aefb8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf7cc67acfa50ef6b21d9aa379e604a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03d3b1a7b201f380f960db4b6ff2943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1d0963bbe4d4d8eda2210585fc1d7d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9f3c3db262a2a476643ac3b2c1a96f.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ef771db17c9cd29df56f0c7695b9f5.png)
④若点D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71f070c1aa967a945113735322fae18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1195c8aeabf1925d6980b8de505e4050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e708e3af53e52b956326036304c90f27.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】如图,已知半圆
的直径
,C是半圆上一点,沿
折叠半圆得到弧
,交直径
于点
,若
、
的长均不小于2,则
的长可能是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/20/4aee0211-d869-437d-8064-c97f8804d8fd.png?resizew=189)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54275b7e571660d0a9e0370fbfe5050b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d78fc7fcb2762de28dcef8aa3aa0e49.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/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/20/4aee0211-d869-437d-8064-c97f8804d8fd.png?resizew=189)
A.7 | B.6 | C.5 | D.4 |
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【推荐2】如图,点E和点F分别在正方形纸片ABCD的边CD和AD上,连接AE,BF,沿BF所在直线折叠该纸片,点A恰好落在线段AE上点G处.若正方形纸片边长12,
,则GE的长为( )
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986744441593856/2995351302963200/STEM/a0f7d92d-400a-4180-9aa9-d5ccd429c497.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f341b98caabf99bc683ce8407068735e.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986744441593856/2995351302963200/STEM/a0f7d92d-400a-4180-9aa9-d5ccd429c497.png?resizew=157)
A.4 | B.3 | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐1】如图,
是平行四边形,对角线
在
轴正半轴上,位于第一象限的点
和第二象限的点
分别在双曲线
和
的一个分支上,分别过点
做
轴的垂线段,垂足分别为点
和
,则以下结论:①
;②阴影部分面积是
;③当
时,
;④若
是菱形,则
.其中正确结论的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54cec401b13d837b0cc8040d15a7a37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb79a1b0c6dc78e6de17de6bed477fb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647ac042da183e6ec9e3db8a66bb1a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d9dd285a463e3610b5292a13949d99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1355d96e31c41efe988488c0a461d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942f08673c32ec0b957bc8309fb07bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d200a411fbc2f50ad72f1fd729a7d7.png)
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
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【推荐2】如图,在矩形
中,
为矩形
的对角线,点
分别是
的中点,连接
交
于点
,连接
交
于点
.连接
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf9b288c48c73463a2f214f02b6952a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a20cb2c77ea29b6eabbc477bc3743859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439ea8582a416b126849e035d12892e1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/30/a6dc41ab-3faf-442f-8c0b-ee2b6b566155.png?resizew=165)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次