如图2.△ABC中.点D在边AB上.满足∠ACD =∠ABC.若AC = 2.AD = 1.则DB = 3 . [解析]由于∠ACD =∠ABC.∠BAC =∠CAD,所以△ADC∽△ACB.即:,所以.则AB=4,所以BD=AB-AD=3 查看更多

 

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精英家教网如图,△ABC中,点D在边AB上,满足∠ACD=∠ABC,若AC=2,AD=1,则DB=
 

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精英家教网如图,△ABC中,点D在边AB上,满足∠ACD=∠ABC,若AC=2,DB=3,则AD=
 

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如图,△ABC中,点D在边AB上,满足∠ACD=ABC,若AC=2AD=1,则DB=??????????

 

 

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如图,△ABC中,点D在边AB上,满足∠ACD =∠ABC,若AC = 2,AD = 1,则DB = __________.

 

 

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如图,△ABC中,点D在边AB上,满足∠ACD=∠ABC,若AC=2,AD=1,则DB=          

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