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如图,已知△ABC的面积S△ABC=1. 在图1中,若,则S△A1B1C1=; ...
如图,已知△ABC的面积S
△ABC=1.
在图1中,若
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/0.png)
,则S
△A1B1C1=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/1.png)
;
在图2中,若
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/2.png)
,则S
△A2B2C2=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/3.png)
;
在图3中,若
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/4.png)
,则S
△A3B3C3=
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/5.png)
;
按此规律,若
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/6.png)
,S
△A8B8C8=
.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131103101719103331488/SYS201311031017191033314018_ST/images7.png)
考点分析:
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