+0  
 
+3
521
1
avatar+196 

Help.

 Mar 22, 2018
 #1
avatar+128089 
+2

Just like the last one, we have

 

Interior diagonal  = √ [ W^2  + L^2  + H^2  ] =

 

 

√[ 60^2  + 80^2  + 100^2  ] = √20000  = 141.42  cm

 

 

cool cool cool

 Mar 22, 2018

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