矩形ABCD沿AE折叠,得到如图所示图形.若∠CED′=56°,则∠AED的大小

矩形ABCD沿AE折叠,得到如图所示图形.若CED=56°,则AED的大小是      °

答案

62 °

 

【考点】翻折变换(折叠问题).

【专题】压轴题;操作型.

【分析】易得DED的度数,除以2即为所求角的度数.

【解答】解:∵∠CED=56°

∴∠DED=180°56°=124°

∵∠AED=AED

∴∠AED=DED=62°

故答案为:62

【点评】考查翻折变换问题;用到的知识点为:翻折前后得到的角相等.

 

相关题目

为了了解高三学生的数学成绩,抽取了某班60名学生,将所得
为了了解高三学生的数学成绩,抽取了某班60名学生,将所得数据整理后,画出其频率分布直方图,如图所示.已知从左到右各长方形高的比为2∶3∶5∶
Archery(射箭) may be the oldest sport in the world. There are prehistoric draw
Archery(射箭) may be the oldest sport in the world. There are prehistoric drawings which show that bows and arrows were used 20 000 years ago. In early times, animals were always hunted and killed w
如图,是由四个相同的小正方体组成的立体图形,它的俯视图是
如图,是由四个相同的小正方体组成的立体图形,它的俯视图是(    )
质量为m的三角形木楔A置于倾角为的固定斜面上,它与斜面间
质量为m的三角形木楔A置于倾角为的固定斜面上,它与斜面间的动摩擦因数为,一水平力F作用在木楔A的竖直平面上,在力F的推动下,木楔A沿斜面以恒
最容易找到苔藓植物的环境是(   )A、向阳潮湿,无污染   
最容易找到苔藓植物的环境是(   )A、向阳潮湿,无污染    B、背阴潮湿,有污染  C、向阳干燥,有污染    D、背阴潮湿,无污染 
名著导读。(3分)枪口轻蔑地望着他的眼睛。    把手枪
名著导读。(3分)枪口轻蔑地望着他的眼睛。    把手枪放在膝上,狠狠地骂了起来:“老弟,这是冒牌的英雄主义!干掉自己,任何一个笨蛋,任
He decided to the matter himself. A.look through B.look into C.look after
He decided to the matter himself. A.look through B.look into C.look after D.look up
The book has been translated into thirty languages since it        on the
The book has been translated into thirty languages since it        on the market in 1973. A.had come            B.has come            C.came            D.c

最新题目