1 . 毕达哥拉斯树,也叫“勾股树”,是由毕达哥拉斯根据勾股定理所画出来的一个可以无限重复的树形图形.欧几里得在《几何原本》中曾对该图做了深入研究,如图,在
中,
,分别以
的三条边为边向外作正方形,连接BF,CD,过点C作
于点M,若
,
,则
的面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e687e5dd7c9e8922070bcfb8176590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402c0f9eecfcdf73f9e87ca82a6f2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee6e05991d1c052baad06492473efa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
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2 . (1)计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514aba62c535edce7f3188622c1c3170.png)
(2)如图,
,
,
.求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833003cfb9b4fa0b99be6f48e9cd0e75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514aba62c535edce7f3188622c1c3170.png)
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a23f35ebcd9799d82c1e41c09781a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0866e1551b61074ca8e61261ecd1f9dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e046a35134460ddb9db23a1f3404d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833003cfb9b4fa0b99be6f48e9cd0e75.png)
您最近一年使用:0次
名校
3 . 如图,在
中,
,点C的坐标为
,点P是
上一动点,连接
,将
绕C点逆时针旋转
得到线段
,使点D恰好落在
上,则点D的坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32268e2ccf8f7bc6fe5787ec49958a6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4772c835cbe626040ecc4df30e6f0ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-02更新
|
141次组卷
|
4卷引用:2024年山东省济宁市泗水县中考二模数学试题
名校
4 . (1)计算:
;
(2)如图,
,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11332dda1d4290c00ca84dd9dddf99bf.png)
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a23f35ebcd9799d82c1e41c09781a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0866e1551b61074ca8e61261ecd1f9dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e046a35134460ddb9db23a1f3404d03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c220eadc312101e2fb89dfe920f7b30d.png)
您最近一年使用:0次
2024-05-01更新
|
43次组卷
|
2卷引用:江西省吉安市2023-2024学年九年级下学期期中数学试题
5 . 如图,在
和
中,
,
,延长
相交于点F,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2689f0ce5ab3467d8214794d8acb2bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba0db442bddfa899bc89e15459e58e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8915b7d1abc441d76c7485628219d71f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eee85c0ed006539b9f6d250deafd81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1c04af96b222b46740ad7e7b348090f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbdcc7a30984284927eb48c8e032685.png)
您最近一年使用:0次
6 . 如图,点A、F、C、D在同一条直线上,
,
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da8fe8f5f8a3f17561d70652ad1172a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7f27111303c38eaf43bf547e460a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c39fc54ae10f9de0484883d57f9b5f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439fbb8974a5f907205d26b47b420bf4.png)
您最近一年使用:0次
7 . 如图,
,
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc1d5679d467f761d312192e10b33dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635e59c002000da2fa1709b9b979d11a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04ae768edd439be3cd8c4bc348c3950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f16c015de62616f6ae9c8c2a7155a02.png)
您最近一年使用:0次
名校
8 . 如图,点
、
、
、
在一条直线上,
且
,
.
;
(2)求证:四边形
是平行四边形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd81adb13f5a7550b0f94f770900a613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f7f27111303c38eaf43bf547e460a33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d9cc37ac19a35e2bf17921443dbb81.png)
(2)求证:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8edaecff592cf677f45d8c54340a89f2.png)
您最近一年使用:0次
2024-04-26更新
|
540次组卷
|
5卷引用:2024年湖南省岳阳市岳阳县中考一模数学试题
2024年湖南省岳阳市岳阳县中考一模数学试题(已下线)数学(山东济南卷)-学易金卷:2024年中考考前押题密卷2024年广西壮族自治区钦州市共美学校中考二模数学试题(已下线)专题6.4 平行四边形的判定(分层练习)(基础练)-2023-2024学年八年级数学下册基础知识专项突破讲与练(北师大版)(已下线)作业03 平行四边形(知识梳理+四大题型专练+能力拓展练)-【暑假分层作业】2024年八年级数学暑假培优练(人教版)
名校
9 . 如图,在矩形
中,点
、
分别在边
、
上,
,连接
,
.求证:
.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ce1475f537b4ad21775bfaa16daa0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c581dab991aeadf06d972e47673ea8.png)
您最近一年使用:0次
10 . (1)计算:
;
(2)如图,在菱形
中,点E,点F分别是
的中点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2f5cd8dd5bac44d654b3d1a8b7fb7e.png)
(2)如图,在菱形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dbf16d3adcc74fbea454665bc66ca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d97f03faed3152db2fd3bd1919944.png)
您最近一年使用:0次