如图:△ABC≌△DCB,AB的对应边DC,∠A的对应角是∠D,则BC的对应边是______.
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如图:△ABC≌△DCB,AB的对应边DC,∠A的对应角是∠D,则BC的对应边是______.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027041010-96285.png) |
答案
∵△ABC≌△DCB,AB的对应边DC,∠A的对应角是∠D, ∴BC=CB(全等三角形的对应边相等); 故答案是:CB. |
举一反三
如图,Rt△ABC≌Rt△FDE,AB=8cm,BC=6cm,将△ABC沿射线DE的方向以2cm/秒的速度平移,在平移过程中,是否存在某个时刻t,使△AEF成为等腰三角形,若存在,请求出t值;若不存在,请说明理由.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027041002-42205.png) |
如图△ABD≌△CDB,若AB=4,AD=5,BD=6,则BC=______,CD=______.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027040958-13976.png) |
△ABC≌△DEC,△ABC的周长为100cm,DE=30cm,EC=25cm,那么BC长为______.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027040953-19507.png) |
如图,△ABC≌△EBD,A,B,D三点在同一直线上,若BD=2cm,∠D=60°,则∠A=______度,BC=______cm.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027040947-95953.png) |
如图,△ABC≌△ADE,若∠B=40°,∠EAB=80°,∠C=45°,则∠EAC=______,∠D=______, ∠DAC=______.
![](http://img.shitiku.com.cn/uploads/allimg/20191027/20191027040943-67809.png) |
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