题目
题型:不详难度:来源:
如图,在菱形
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-16867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-11256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-97352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-80617.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134346-63334.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134346-80528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134346-10972.png)
(1)求证:①
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134346-97356.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134347-98343.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134347-30474.png)
(2)如果
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134347-84660.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134347-43835.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-16867.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134348-41512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134348-24296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-11256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-97352.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134348-88203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134348-59657.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134348-58562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134349-85050.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134349-98410.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134349-53272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134347-30474.png)
(2)菱形
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-16867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134349-70356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134350-83561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134350-98925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134350-40179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134350-11289.png)
(1)找出两三角形的三边分别对应相等,根据
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134351-62359.png)
(2)把菱形
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134345-16867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134351-59817.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134350-83561.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134236-56340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134236-79691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134237-31003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134237-58671.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134237-94534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134237-40615.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134237-99931.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134238-10514.png)
A.四边形![]() |
B.如果![]() ![]() |
C.如果![]() ![]() ![]() |
D.如果![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134138-46420.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134139-30863.png)
⑴求证:四边形ABCD是矩形;
⑵在四边形ABCD中,求
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029134139-90508.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133933-81029.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133449-14509.jpg)
A.![]() | B.4cm | C.![]() | D.3cm |
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133441-25471.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133442-33335.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133442-30653.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133442-69822.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133442-10610.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133442-29488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133443-47366.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133443-21788.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133443-66353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133443-56035.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133444-66043.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133444-48427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191029/20191029133444-91097.png)
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