如图所示,点
是菱形
对角线的交点,
,
,连接
,交
于
.
;
(2)如果
,
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1f406b3ff8561a371a39908fd813f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4606275ef4a45ee6e094b05c07d64639.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfcbbddbce351fc71cbdf622baf92270.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeee78b224ed35faa0809368eb041a7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94c3e57ce6ed8c71cbbdfdc518d9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
13-14八年级下·江苏扬州·期末 查看更多[23]
2013-2014学年江苏省扬州市江都区八年级下学期期末考试数学试卷【全国市级联考】江西省抚州市2017-2018学年九年级上学期期末联考数学试卷宁夏银川二中2018届九年级中考一模数学试卷陕西省商洛市商州区2018-2019学年八年级下学期期中数学试题江苏省江阴市要塞片2019-2020学年八年级下学期期中数学试题江苏省泰州市靖江市靖城中学校际联盟2020-2021学年八年级下学期第二次月考数学试题2021年广东省深圳市福田区上步中学中考数学三模试卷(已下线)专题20 多边形与四边形-备战2022年中考数学母题题源解密(广东专用)2022年宁夏吴忠市盐池县九年级下学期第二次模拟考试数学试题2022年辽宁省沈阳市浑南区九年级二模数学试题(已下线)第02讲 矩形的性质与判定-【暑假自学课】2022年新九年级数学暑假精品课(北师大版)江苏省宿迁市泗阳县2021-2022学年八年级下学期期末数学试题(已下线)专题1.2 矩形的性质与判定(能力提升)-2022-2023学年九年级数学上册《同步考点解读·专题训练》(北师大版)江苏省扬州市江都区华君外国语学校2021-2022学年八年级下学期第二次教学专项调研数学试题(已下线)专练02 菱形解答证明题(练习)-2022-2023学年八年级数学下册同步精品课堂(苏科版)江苏省无锡市宜兴市实验中学2022-2023学年八年级下学期3月月考数学试题(已下线)期末真题精选(基础60题40个考点分类专练)江苏省宿迁市泗洪县2022-2023学年八年级下学期期末数学试题安徽省安庆市太湖县2022~2023学年八年级下学期期末数学试题黑龙江省齐齐哈尔市铁锋区第五十二中学校2021-2022学年八年级下学期期末模拟数学试题辽宁省丹东市第五中学2023-2024学年九年级上学期月考数学试题(已下线)江苏八年级下期末真题精选(基础60题55个考点专练)-【满分全攻略】2022-2023学年八年级数学下学期核心考点+重难点讲练与测试(苏科版)安徽省芜湖市沈巷中学2023-2024学年八年级下学期第三次月考数学试题
更新时间:2022-10-01 08:32:03
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】如图,
为
的直径,点C在
外,
的平分线与
交于点D,
.
(1)
与
有怎样的位置关系?请说明理由;
(2)若
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/2099697d-2ac3-4319-9c9c-e3942b820eb2.png?resizew=132)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5ac5b34f73f3aee1332983aaa8adaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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适中
(0.65)
名校
【推荐2】如图,
中,
,
,
,若动点P从点C开始,按C→A→B→C的路径运动,且速度为每秒
,设出发的时间为t秒.回答下列问题:
(1)当t=______秒时,
平分
;
(2)在运动过程中是否能出现以
为腰的等腰三角形
?若能,求出此时点P运动时间;若不能,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd4a1c8087ef697d82b321a3331211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c545764505bb00578a870c5e39493a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/20/67c8085f-c407-4bb3-90fa-351c3c84e394.png?resizew=152)
(1)当t=______秒时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
(2)在运动过程中是否能出现以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/357265c532428e886a643e8e653eec9e.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐1】综合与实践
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/87801eb5-caa0-4d66-9e0e-a51ad4c5d48a.png?resizew=250)
问题情境:数学活动课上,老师出示了一个问题.如图1,在边长为2的正方形
中,分别以
为边在正方形内部作等边三角形
与等边三角形
,线段
与
交于点G,线段
与
交于点H,猜想
与
的数量关系,并加以证明.
(1)数学思考:请解答老师出示的问题.
(2)问题拓展:如图2,将
从图1的位置开始沿射线
的方向平移得到
,连接
,
,当四边形
是矩形时,求
平移的距离.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/87801eb5-caa0-4d66-9e0e-a51ad4c5d48a.png?resizew=250)
问题情境:数学活动课上,老师出示了一个问题.如图1,在边长为2的正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf86f7cf381c563ad80af86feeed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14eec658f69c267a70c1e8f9b744e282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f3956f008cc29ca4bae44a087d5427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
(1)数学思考:请解答老师出示的问题.
(2)问题拓展:如图2,将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063dff85a6c351b47b080dc0352dfaf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad0a19415e796564f30906f2e7dbf76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7752aa0b8a01afc2fa4e44212cc9333b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d743d183e26f4b910d493c54c1cbfe10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df7626240940eb340420a605e95aeee.png)
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解答题-问答题
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适中
(0.65)
【推荐2】如图1,在平面直角坐标系中,点B的坐标是
,动点A从原点O出发,沿着x轴正方向移动,
是以
为斜边的等腰直角三角形(点A、B、P顺时针方向排列).
(此时点P与点C重合),则
______.当
时,点P的坐标是______;
(2)设动点A的坐标为
.
①点A在移动过程中,作
轴于M,
于N,求证:四边形
是正方形;
②用含t的代数式表示点P的坐标为:(______,______);
(3)在上述条件中,过点A作y轴的平行线交
的延长线于点Q,如图2,是否存在这样的点A,使得
的面积是
的面积的3倍?若存在,请求出A的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb49c1fd097c5aafc0c9080449f5fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
(2)设动点A的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88756f91267b7117d07e3f4b88e285b9.png)
①点A在移动过程中,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e19a722a1564ff4cecc6e1b5a6c59096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d1fa94fdc3ac213b3e628ca5fbd0ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b16c49d16305cf1afacc5a9e2bf7e9a.png)
②用含t的代数式表示点P的坐标为:(______,______);
(3)在上述条件中,过点A作y轴的平行线交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3111eb07acf36e3c08e8f72789ffd220.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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解答题-作图题
|
适中
(0.65)
【推荐1】综合与实践
数学活动课上,同学们用尺规作图法探究用菱形一条对角线来作菱形.如图,
是菱形
的一条对角线,且顶点
在射线
上.
(2)[拓展延伸]若
,
,求菱形
的面积.
数学活动课上,同学们用尺规作图法探究用菱形一条对角线来作菱形.如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(2)[拓展延伸]若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aabecf66d94e4094f9cc46fd8ee050f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
【推荐2】如图,在
中,点
分别在
上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/84068167-f162-4bac-b7f9-3031e2ee4d1d.png?resizew=149)
(1)请从以下三个条件:①
是
的中点,②
平分
,③
中,选择一个合适的作为已知条件,使四边形
为菱形,并加以证明.
(2)在(1)的条件下,若
,求菱形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5138a9f70d5e8b0580e30fef6eb7baef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46c696ff5f123a482bae81cf9a1b570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5637fd022617bde5ce2a72797e7d084c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/9/84068167-f162-4bac-b7f9-3031e2ee4d1d.png?resizew=149)
(1)请从以下三个条件:①
![](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/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/138c0d201baff3e0f7b9de6544317fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
(2)在(1)的条件下,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/170ef3dee044c2a48f8148ff05debe67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/910936ec9fb419d51ce2f5ea817f8401.png)
您最近一年使用:0次