满分5 >
初中数学试题 >
如图,已知△ACD∽△ABC,∠1=∠B,下列各式正确的是( ) A. B. C...
如图,已知△ACD∽△ABC,∠1=∠B,下列各式正确的是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106018_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106018_ST/0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106018_ST/1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106018_ST/2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106018_ST/3.png)
考点分析:
相关试题推荐
如图,△ADE∽△ABC,若AD=1,BD=2,则△ADE与△ABC的相似比是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106017_ST/images0.png)
A.1:2
B.1:3
C.2:3
D.3:2
查看答案
若相似三角形周长比为3:2,则它们的面积比为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106016_ST/0.png)
:
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106016_ST/1.png)
B.9:4
C.3:2
D.4:9
查看答案
如图,在平行四边形ABCD中,AB=10,AD=6,E是AD的中点,在AB上取一点F,使△CBF∽△CDE,则BF的长是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106015_ST/images0.png)
A.5
B.8.2
C.6.4
D.1.8
查看答案
如图,已知△ADE∽△ACB,且∠ADE=∠C,则AD:AC=( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106014_ST/images0.png)
A.AE:AC
B.DE:BC
C.AE:BC
D.DE:AB
查看答案
如图,已知△ADE∽△ABC,相似比为2:3,则
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106013_ST/0.png)
=( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101755003410637/SYS201311031017550034106013_ST/images1.png)
A.3:2
B.2:3
C.2:1
D.不能确定
查看答案