满分5 >
初中数学试题 >
(2002•朝阳区)顺次连接三角形三边的中点,所构成的三角形与原三角形对应高的比...
(2002•朝阳区)顺次连接三角形三边的中点,所构成的三角形与原三角形对应高的比是( )
A.1:4
B.1:3
C.1:2
D.1:1
考点分析:
相关试题推荐
(2002•海南)如图,已知梯形ABCD中,AD∥BC,对角线AC、BD分别交中位线EF于点H、G,且EG:GH:HF=1:2:1,那么AD:BC等于( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304004_ST/images0.png)
A.2:3
B.3:5
C.1:3
D.1:2
查看答案
(2002•湖州)已知D、E、F分别是△ABC的AB、AC、BC边的中点,且△ABC的面积是16,则△DEF的面积为( )
A.8
B.4
C.2
D.1
查看答案
(2004•云南)已知a,b,c均为正数,且
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304002_ST/0.png)
,则下列4个点中,在反比例函数y=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304002_ST/1.png)
图象上的点的坐标是( )
A.(1,
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304002_ST/2.png)
)
B.(1,2)
C.(1,-
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304002_ST/3.png)
)
D.(1,-1)
查看答案
(2002•苏州)如图所示,已知△ABC中,BC=8,BC上的高h=4,D为BC上一点,EF∥BC,交AB于点E,交AC于点F(EF不过A、B),设E到BC的距离为x.则△DEF的面积y关于x的函数的图象大致为( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304001_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304001_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304001_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304001_ST/images3.png)
D.
查看答案
(2002•绍兴)已知
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304000_ST/0.png)
,那么
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304000_ST/1.png)
等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304000_ST/2.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304000_ST/3.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602462630448/SYS201310212326024626304000_ST/4.png)
D.
查看答案