如图,△ABC与△ADE都是直角三角形,∠B与∠AED都是直角,点E在AC上

如图,ABCADE都是直角三角形,BAED都是直角,EAC上,D30°,如果ABC经过旋转后能与AED重合,那么旋转中心是点______,逆时针旋转了______________.

 


答案

A,60°

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