如图所示，BD平分∠ABC，BE分∠ABC成2：5的两部分，∠DBE=27°，求∠ABC的度数．_刷题宝

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如图所示，BD平分∠ABC，BE分∠ABC成2：5的两部分，∠DBE=27°，求∠ABC的度数．

上一题下一题 0.0难度选择题更新时间:2019-01-13 06:11:00

答案(点此获取答案解析）

解：设∠ABC=α，则∠ABD= a

2

，∠ABE=

\frac{2}{7}

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