12-13高三上·江西抚州·期末
1 . 一个多面体的直观图及三视图如右图所示,M、N分别是AF、BC的中点.请把下面几种正确说法的序号填在横线上__________________ .
①MN∥平面CDEF;
②
;
③该几何体的表面积等于
;
④该几何体的外接球(几何体的所有顶点都在球面上)的体积等于
.
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/ccf6f8c454ce44968a35b02a641dcd34.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/c0442db6d7c4440592ac80f39d001560.png?resizew=260)
①MN∥平面CDEF;
②
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/f126a5afee33438184fcc754c64d64b8.png?resizew=67)
③该几何体的表面积等于
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/defb8dc2e917453fb41f903fc092755c.png?resizew=62)
④该几何体的外接球(几何体的所有顶点都在球面上)的体积等于
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/9a3c1a93e1fd4ae18dc262070138efe8.png?resizew=42)
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/ccf6f8c454ce44968a35b02a641dcd34.png?resizew=130)
![](https://img.xkw.com/dksih/QBM/2012/2/6/1570717603495936/1570717608763392/STEM/c0442db6d7c4440592ac80f39d001560.png?resizew=260)
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