如图,在菱形
中,对角线
、
相交于点
,
,
,请分别求菱形
的面积和周长.
![](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/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87d928722f5d3c69917501dda91c7ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0356f21ffed7ef090134c9e56501a27e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
更新时间:2024-04-23 17:31:57
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相似题推荐
解答题-作图题
|
适中
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【推荐1】如图,在平面直角坐标系中,每个小正方形的边长为1cm,
各顶点都在格点上,点A,C的坐标分别为
、
,结合所给的平面直角坐标系解答下列问题:
![](https://img.xkw.com/dksih/QBM/2020/10/31/2583128325824512/2585558800965632/STEM/faaa4e78-1d22-4934-8275-f0070f103bb0.png?resizew=268)
(1)画出
关于y轴对称的
;
(2)画出
关于x轴对称的
;
(3)若点P为y轴上一动点,则
的最小值为______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://img.xkw.com/dksih/QBM/2020/10/31/2583128325824512/2585558800965632/STEM/faaa4e78-1d22-4934-8275-f0070f103bb0.png?resizew=268)
(1)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4310db23fc79936c7182361e652bab1a.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828dc8dc7259c510b6d63abf40f60e90.png)
(3)若点P为y轴上一动点,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
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解答题-问答题
|
适中
(0.65)
【推荐2】如图①,在Rt△ABC中,∠C=90°,BC=6cm,AC=8cm,现有一动点P,从点A出发,沿着三角形的边AC→CB→BA运动,回到点A停止,速度为3cm/s,设运动时间为ts.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/20/f2978222-f4d1-4c69-a3cf-cb4908bd1156.png?resizew=327)
(1)如图(1),当点P在边AC上时,AP=______,当点P在边AB上时,AP=_______.(用t表示)
(2)如图(1),当t为何值时,△ABP的面积等于△ABC面积的一半;
(3)如图(2),在△DEF中,∠E=90°,DE=4cm,DF=5cm,∠D=∠A.在△ABC的边上,若另外有一个动点Q,与点P同时从点A出发,沿着边AB→BC→CA运动,回到点A停止.在两点运动过程中的某一时刻,恰好△APQ≌△DEF,求点Q的运动速度.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/20/f2978222-f4d1-4c69-a3cf-cb4908bd1156.png?resizew=327)
(1)如图(1),当点P在边AC上时,AP=______,当点P在边AB上时,AP=_______.(用t表示)
(2)如图(1),当t为何值时,△ABP的面积等于△ABC面积的一半;
(3)如图(2),在△DEF中,∠E=90°,DE=4cm,DF=5cm,∠D=∠A.在△ABC的边上,若另外有一个动点Q,与点P同时从点A出发,沿着边AB→BC→CA运动,回到点A停止.在两点运动过程中的某一时刻,恰好△APQ≌△DEF,求点Q的运动速度.
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解答题-问答题
|
适中
(0.65)
【推荐1】如图,在平面直角坐标系xOy中,点C的坐标为(4,0),一次函数
的图像分别交x轴、y轴于点A、点B.
⑴ 若点D是直线AB在第一象限内的点,且BD=BC,试求出点D的坐标.
⑵ 在⑴的条件下,若点Q是坐标轴上的一个动点,试探索在第一象限是否存在另一个点P,使得以B、D、P、Q为顶点的四边形是菱形(BD为菱形的一边)?若存在,请直接写出 点P的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b36650cd33ee5c74689a2d0375c505.png)
⑴ 若点D是直线AB在第一象限内的点,且BD=BC,试求出点D的坐标.
⑵ 在⑴的条件下,若点Q是坐标轴上的一个动点,试探索在第一象限是否存在另一个点P,使得以B、D、P、Q为顶点的四边形是菱形(BD为菱形的一边)?若存在,请
![](https://img.xkw.com/dksih/QBM/2017/10/19/1798691466502144/1799413519114240/STEM/f1a626d6b346424a9f82c3a7738eb1ff.png?resizew=264)
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解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,菱形
中,
,E为边
上一点,点F在
的延长线上,
,作点F关于直线
的对称点G,连接
.
;
(2)用等式表示
之间的数量关系,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840e41acff5a3c2b13567d7632ea3095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3f982d999937891eec4cb22d62e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a33b78c760ef3a234bb153d6cc92357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc8b62dc033d86ee9e561b8903796701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d856bd6aaf6332cd312bd96f419bb4da.png)
(2)用等式表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71cea99996a77ba58b725fd1216ae4b8.png)
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解答题-问答题
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适中
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【推荐1】已知;如图,已知矩形
的两条对角线相交于点O,
.
(1)求
的长.
(2)以
为邻边作菱形
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101028733ede949e06d2e1d3ae05f84e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/4/b8396331-456d-4f9e-8f82-1d62efa02b11.png?resizew=133)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cdd1cafc1898d9a5e960b7aef0ade5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e89d43151016343d2ab6c4851565e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e89d43151016343d2ab6c4851565e7.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
【推荐2】如图,四边形
为菱形,
于点,E是
上一点,且
,连接
.
(1)尺规作图:作
的外接圆
(保留作图痕迹);
(2)判断直线
与
的位置关系,并说明理由;
(3)连接
与
交于点
,若
,
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa30a9ee227af2b387cf6e028c20d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d96a5d40d0aea9f4398ca4d0fe9b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/18/6dd2150d-921a-4e52-b458-d7acbe3f1c55.png?resizew=166)
(1)尺规作图:作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/441dec590b47adc3678a291a3ec89a4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(3)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c3f982d999937891eec4cb22d62e5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d64e0206b1814c35cc96bd2b6b12239a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f2a6932bdef68b0908011116bd08052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
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