如图,新农村建设中某地新修通了两条公路
和
,其中公路
把青山村
和绿水村
隔开.电信部门要修建一座电视信号发射塔,按照要求,发射塔到两村的距离必须相等,且到两条公路的距离也必须相等.请你通过作图帮助选取一点
作为发射塔的位置.(不写作法,需保留作图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/16/265a5f8a-ea7f-42e6-b815-6f267cbc889b.png?resizew=243)
更新时间:2023-12-10 08:12:30
|
相似题推荐
解答题-证明题
|
较易
(0.85)
【推荐1】如图,已知在
中
边的垂直平分线
与
的平分线交于点
,
交
的延长线于点
,
交
于点
.求证:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/bcf558ec-e21e-4361-8561-bc3b17bbaadd.png?resizew=169)
(1)
;
(2)猜想线段
的数量关系,并进行证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827beb23a9fe02a8b588645bcb82ce67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/5/bcf558ec-e21e-4361-8561-bc3b17bbaadd.png?resizew=169)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb65161f9508867ed7847606781fa7e.png)
(2)猜想线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f48c7063d8700f13fa8d7466b14462d.png)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】如图,∠A=∠D=90°,BE平分∠ABC,且点E是AD的中点,求证:BC=AB+CD.
![](https://img.xkw.com/dksih/QBM/2022/2/10/2913312873234432/2917757899276288/STEM/5f87410e-c09b-4c71-94d4-56eadaad1efb.png?resizew=172)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
【推荐1】已知∠AOB=70°,根据语句画图,并填空.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/4/a55fc3a0-7f52-4d89-96e8-fa60ed98d361.png?resizew=152)
(1)画∠AOB的平分线OC;
(2)在OC上任取一点P,画垂线段PD⊥OA于D,垂线段PE⊥OB于E;
(3)画直线PF//OB交OA于F;
(4)则∠DFP= .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/4/a55fc3a0-7f52-4d89-96e8-fa60ed98d361.png?resizew=152)
(1)画∠AOB的平分线OC;
(2)在OC上任取一点P,画垂线段PD⊥OA于D,垂线段PE⊥OB于E;
(3)画直线PF//OB交OA于F;
(4)则∠DFP= .
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】作图题:如图,
内有两点
,
,请你确定一点
,使点
到
,
的距离相等,且到
,
的距离也相等,在图上标出它的位置.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/20/81a7a219-fc51-4605-b854-e4d2033e56c6.png?resizew=146)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐1】如图,在
中,
,
.
(1)请用尺规作图法,作边
的垂直平分线交
于点
(不要求写作法,但保留作图痕迹);
(2)若
,
,连接
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfa8cee7d2463f6f7d352e8b65f47cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ed8f7d3d7043d4b1eb98fc5c4e2fcd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e95be88bc79b3c7e72d349c4cb3c88d.png)
(1)请用尺规作图法,作边
![](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/8455657dde27aabe6adb7b188e031c11.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df6d51738ac1bc8b9530ea4a55745c2.png)
![](https://img.xkw.com/dksih/QBM/2020/6/22/2490291568959488/2495012233019392/STEM/cf44b2356fa24e1bacf8d68bc01fc2bc.png?resizew=181)
您最近一年使用:0次
解答题-证明题
|
较易
(0.85)
【推荐2】如图,
中,
,
是
的中线,
垂直平分
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/d7aedcec-bbf7-42d5-a3a2-b7a544417f12.png?resizew=153)
(1)求证:
;
(2)若
,求
的度数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8648cc68448cb78e36cff296b912ea46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7935ad59079c158ea0f92018fc548e4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b41d4070854edfaa24071137b314cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/17/d7aedcec-bbf7-42d5-a3a2-b7a544417f12.png?resizew=153)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabd5c0627cb02060b4dbcbcff69dad1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d8e2882d47eb9e40b587e956de5ba3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadd89be402a80b5c0335438707cf459.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐1】已知:如图,直线l和l外一点P.
求作:直线PQ,使得
.
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990549279719424/2991058623160320/STEM/0102ad62-a771-41e1-9985-21c6165f4918.png?resizew=305)
作法:①在直线l上任取一点A,连接PA,以点A为圆心,PA的长为半径画弧,交直线l于点B;
②分别以点P,B为圆心,PA的长为半径画弧,两弧交于点Q(不与点A重合);
③作直线PQ.
所以直线PQ就是所求作的直线.
(1)使用直尺和圆规,依作法补全图形(保留作图痕迹);
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990549279719424/2991058623160320/STEM/57c26fbf-f5f6-482d-8572-95a65e09ab1f.png?resizew=295)
(2)完成下面的证明.
证明:连接BQ.
∵
,
∴四边形PABQ是______,(__________)(填推理依据).
∴
(__________)(填推理依据).
即
.
求作:直线PQ,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43460283aa3418a0ed8296ad9ac7eb1.png)
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990549279719424/2991058623160320/STEM/0102ad62-a771-41e1-9985-21c6165f4918.png?resizew=305)
作法:①在直线l上任取一点A,连接PA,以点A为圆心,PA的长为半径画弧,交直线l于点B;
②分别以点P,B为圆心,PA的长为半径画弧,两弧交于点Q(不与点A重合);
③作直线PQ.
所以直线PQ就是所求作的直线.
(1)使用直尺和圆规,依作法补全图形(保留作图痕迹);
![](https://img.xkw.com/dksih/QBM/2022/5/30/2990549279719424/2991058623160320/STEM/57c26fbf-f5f6-482d-8572-95a65e09ab1f.png?resizew=295)
(2)完成下面的证明.
证明:连接BQ.
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72610d26d4ab72dfeef46d3cbd78b75.png)
∴四边形PABQ是______,(__________)(填推理依据).
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259a6725a9231c13ee8775d84ea397ea.png)
即
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43460283aa3418a0ed8296ad9ac7eb1.png)
您最近一年使用:0次
解答题-作图题
|
较易
(0.85)
【推荐2】已知:两条相交公路
与
形成的区域内部有两个居民小区,可近似的看作点D与点E.为了给居民提供便利,社区要在
内部区域内选择一处地址修建快递柜,使选址点P到两个居民区和两条公路距离均相等.请用尺规作图法作出点P的位图,不写作法,但要保留作图痕迹.
![](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/0ccdccf6ca4ab39cc41fe3f7afc2846d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/16/8e59c5dc-aff8-48f3-9f18-cde7b33941d9.png?resizew=176)
您最近一年使用:0次