已知:BC交AD于点O,∠A=∠C=90°.如图,∠ABC的平分线与∠ADC的平分线交于点E,证明BE⊥DE .已知:BC交AD于点O,∠A=∠C=90°.如图,∠ABC的平分线与∠ADC的平分线交于点E,证明BE⊥DE .
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/11 07:20:42
![已知:BC交AD于点O,∠A=∠C=90°.如图,∠ABC的平分线与∠ADC的平分线交于点E,证明BE⊥DE .已知:BC交AD于点O,∠A=∠C=90°.如图,∠ABC的平分线与∠ADC的平分线交于点E,证明BE⊥DE .](/uploads/image/z/3001576-40-6.jpg?t=%E5%B7%B2%E7%9F%A5%EF%BC%9ABC%E4%BA%A4AD%E4%BA%8E%E7%82%B9O%2C%E2%88%A0A%3D%E2%88%A0C%3D90%C2%B0.%E5%A6%82%E5%9B%BE%2C%E2%88%A0ABC%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E4%B8%8E%E2%88%A0ADC%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9E%2C%E8%AF%81%E6%98%8EBE%E2%8A%A5DE+.%E5%B7%B2%E7%9F%A5%EF%BC%9ABC%E4%BA%A4AD%E4%BA%8E%E7%82%B9O%2C%E2%88%A0A%3D%E2%88%A0C%3D90%C2%B0.%E5%A6%82%E5%9B%BE%2C%E2%88%A0ABC%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E4%B8%8E%E2%88%A0ADC%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E4%BA%A4%E4%BA%8E%E7%82%B9E%2C%E8%AF%81%E6%98%8EBE%E2%8A%A5DE+.)
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