天气预报 > 其他 > 菱形的判定定理是哪几个说下
菱形的判定定理是哪几个说下
更新时间: 2020-08-19 00:00:00  

1、一组邻边相等的平行四边形是菱形;

2、四边相等的四边形是菱形;

3、关于两条对角线都成轴对称的四边形是菱形;

4、对角线互相垂直且平分的四边形是菱形,依次连接四边形各边中点所得的四边形称为中点四边形。

关键词: 菱形 判定 定理

菱形的判定定理是哪几个说下相关经验

天气预报

最新推荐

页面:/news/view-1404295/ | 耗时:0.1752 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1404295 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1404295 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1404295 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1054676,1062670,1131551,1079191,1054380,1093397,1062999,1112754,1098107,1051711,1493289,1088774,1128351,1054388,1057710,1094015,1056152,1128341,1050843,1057028,1062000,1100583,1125329,1064613,1126912,1052415,1044609,996794,1096000,1081699) ORDER BY field (ArticleID,1054676,1062670,1131551,1079191,1054380,1093397,1062999,1112754,1098107,1051711,1493289,1088774,1128351,1054388,1057710,1094015,1056152,1128341,1050843,1057028,1062000,1100583,1125329,1064613,1126912,1052415,1044609,996794,1096000,1081699)