已知,如图,A(0,5),AC=13,以点A为圆心,适当长为半径画弧,分别交AO、AC于点D,E,再分别以点D、E为圆心,大于
DE的长为半径画弧,两弧交于点F,作射线AF交x轴于点G,则点G的横坐标是( )
![](https://img.xkw.com/dksih/QBM/2020/11/5/2586307762651136/2590542480211968/STEM/5fbb38d9ab25470f8838555f3cd7274e.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/2020/11/5/2586307762651136/2590542480211968/STEM/5fbb38d9ab25470f8838555f3cd7274e.png?resizew=165)
A.3 | B.![]() | C.![]() | D.4 |
更新时间:2020-11-11 21:06:38
|
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适中
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【推荐1】如图,正方形
中,点
,
分别在
,
上,
是等边三角形,连
交
于
,下列结论:
①
;
②
;
③
;
④
.
其中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/7b482c45-f7f1-47da-8c59-7df0c705946f.png?resizew=138)
![](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/a0ed1ec316bc54c37c4286c208f55667.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/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/895dc3dc3a6606ff487a4c4863e18509.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64c319650f637c3fe739dd35e38f22a.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5367df816405770895928219aeefdb47.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24dfa37067ff455888ebe076eeb1fb2.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b33e3375a4befea4fbf1446d2fbce6.png)
其中正确的个数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/7b482c45-f7f1-47da-8c59-7df0c705946f.png?resizew=138)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,有两个长度相同的滑梯靠在一面墙上.已知左边滑梯的高度AC与右边滑梯水平方向的长度DF相等,则这两个滑梯与地面夹角∠ABC与∠DFE的度数和是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/28/e86efa88-4eb2-420b-8fbb-765f63b9a349.png?resizew=232)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/28/e86efa88-4eb2-420b-8fbb-765f63b9a349.png?resizew=232)
A.60° | B.90° | C.120° | D.150° |
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【推荐1】如图,在
中,
平分
交
于点
,
平分
交
于点F.若
,
,则
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727ad3e630a224303d6d3b8ad5c114ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65fc998d33cdf37c272f79cfd64b7b99.png)
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A.1 | B.1.5 | C.2 | D.2.5 |
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【推荐2】如图所示,在Rt△ACB中,∠C=90°,AD平分∠BAC,若CD=6,则点D到AB的距离是( )
![](https://img.xkw.com/dksih/QBM/2018/7/10/1985577433538560/1986175102943233/STEM/26f532889b1d4169a938b30f2e207204.png?resizew=165)
![](https://img.xkw.com/dksih/QBM/2018/7/10/1985577433538560/1986175102943233/STEM/26f532889b1d4169a938b30f2e207204.png?resizew=165)
A.9 | B.8 | C.7 | D.6 |
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【推荐1】如图,在
中,按以下步骤作图:①以点
为圆心,以适当长为半径作弧,分别交
,
于点
,
;②分别以
,
为圆心,以大于
的长为半径作弧,两弧在
内交于点
;③作射线
,交
于点
,交
延长线于点
.若
,
,下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94e1ca12da27075e5241b7c7ce74672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf1438142deeac876fc7dc50552e552.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377b5f7197e5bd1afeea4d931307956a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图,在
中,
,
,以点A为圆心,以
的长为半径作弧交
于点D,连接
,再分别以点B,D为圆心,大于
的长为半径作弧,两弧交于点P,作射线
交
于点E,连接
,则下列结论:①
平分
;②
是等边三角形;③
垂直平分线段
;④
是等腰三角形,其中正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/e616e36b-eb80-493f-8925-3f368f177355.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】如图,正方形ABCD的边长为4,点E在边AB上,BE=1,∠DAM=45°,点F在射线AM上,且AF=
,过点F作AD的平行线交BA的延长线于点H,CF与AD相交于点G,连接EC、EG、EF.下列结论:①△ECF的面积为
;②△AEG的周长为8;③EG2=DG2+BE2;其中正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/ce6153a9-03d6-4e7c-a57a-35d49b1b4098.png?resizew=127)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a33450ad7e5b5219a5042251cfe087b.png)
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A.①②③ | B.①③ | C.①② | D.②③ |
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【推荐2】如图,菱形
的对角线
,
交于点
.若
,
,则菱形
的周长是( )
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731d56828e307b8be0c7b7b697356a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次