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某几何体的直观图如图所示,则该几何体的侧(左)视图的面积为( ) A.5πa2 ...
某几何体的直观图如图所示,则该几何体的侧(左)视图的面积为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131025123854140807750/SYS201310251238541408077010_ST/images0.png)
A.5πa
2B.5a
2C.
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D.
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