题干

如图所示,在△ABC中,∠B=40°,将△ABC绕点A逆时针旋转至△ADE处,使点B落在BC延长线上的D点处,则旋转角∠BAD=____度.

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100

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Struck by the terrible earthquake, Wenchuan, a country in Sichuan province, was _____ from the outside.