求 数学JJ 29题

29       个平行四边形,边长均为6,面积为18,为下面哪个是该四边形的角度?
            

Key: 30或150MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">
        

这题能得出6只能是那个高的直角三角形的的斜边。=所以是有30度，150的组成的一个平行4变形。。MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt;">
            

答案是我做的，大家一起讨论正确性。。。MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">
        

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">边长都是6不是菱行了吗????郁闷??

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">求解!!

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">

MingLiU","serif"; mso-bidi-font-family: PMingLiU; mso-font-kerning: 0pt; mso-fareast-font-family: 新宋体;">欢迎大家谈论啊!!

楼主做的对的。。。6只能是高的斜边。。