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        Summary 
        
         
          
           | Description | 
           
             English: A flattened tetrahedron. 
            Polski: siatka czworościanu foremnego 
            Русский: Развёртка тетраэдра без закладок, но зато с цветной заливкой 
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           | Date | 
           20 December 2006 | 
          
          
           | Source | 
           Original file | 
          
          
           | Author | 
            Júlio Reis | 
          
          
           Permission ( Reusing this file) | 
           
             See below. 
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