如图，四边形ABCD中，点M、N分别在AB，BC上，将△BMN沿MN翻折，得△FMN，若MF∥AD，FN∥DC，∠A=100°，∠C=70°，则∠B=_1．_刷题宝

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如图，四边形ABCD中，点M、N分别在AB，BC上，将△BMN沿MN翻折，得△FMN，若MF∥AD，FN∥DC，∠A=100°，∠C=70°，则∠B=____．

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95°

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