如图,在菱形中,,取大于的长为半径,分别以点,为圆心作弧相交

如图,在菱形中,,取大于的长为半径,分别以点为圆心作弧相交于两点,过此两点的直线交边于点(作图痕迹如图所示),连接,则的度数为_________

答案

45°

【解析】

根据题意知虚线为线段AB的垂直平分线,得AE=BE,得;结合°,,可计算的度数.

【详解】

故答案为:45°.

【点睛】

本题考查了菱形的性质,及垂直平分线的性质,熟知以上知识点是解题的关键.

相关题目

Having received ________ training of the MS. Company, he was offered ________ im
Having received ________ training of the MS. Company, he was offered ________ important position in management. A. the; an B. /; an C. the; / D. a; a
(本小题14分) (1) 证明函数 f(x)= 在上是增函数; ⑵求在上的
(本小题14分) (1) 证明函数 f(x)= 在上是增函数; ⑵求在上的值域。
Everyone needs to have at least eight hours’ sleep a night, so you shouldn’t
Everyone needs to have at least eight hours’ sleep a night, so you shouldn’t ______ too late.A.give upB.stay upC.put upD.make up
 一快艇从离岸边100m远的河中央向岸边行驶.已知快艇在静
 一快艇从离岸边100m远的河中央向岸边行驶.已知快艇在静水中的速度图象如图甲所示,流水的速度图象如图乙所示,则:   A.快艇的运动轨迹一定为
设的导数为,若函数的图象关于直线对称,且函数在处取得极
设的导数为,若函数的图象关于直线对称,且函数在处取得极值.(I)求实数的值; (II)求函数的单调区间.
Maggie has been fortunate to find a job she loves and, ______,she gets well paid
Maggie has been fortunate to find a job she loves and, ______,she gets well paid for it. A.sooner or later B.what’s more C.as a result D.more or less
关于喜马拉雅山脉的位置及成因类型的说法正确的是 A、位于
关于喜马拉雅山脉的位置及成因类型的说法正确的是 A、位于亚欧板块上,属于褶皱山脉 B、位于亚欧板块上,属于海岸山脉 C、位于印度洋板块上,属
David, get up early, ________ you’ll catch the early bus. A. but      
David, get up early, ________ you’ll catch the early bus. A. but           B. and             C. after           D. or

最新题目