P0B的知识精选

设△ABC,P0是边AB上一定点,满足P0B=AB,且对于边AB上任一点P,恒有·≥·,则(  )A.∠ABC...
问题详情:设△ABC,P0是边AB上一定点,满足P0B=AB,且对于边AB上任一点P,恒有·≥·,则( )A.∠ABC=90°                  B.∠BAC=90°=AC                       D.AC=BC【回答】D知识点:...
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