1.

A cuboidal tank is made by digging earth whose length is 4 metre, breadth is 3 metre and height is 2.5 metre. Find the length of its diagonal.

A.  5.59 m   
B.                    6.2 m
C.  7.5 m                          
D.  7.12 m
E.  None of these
Answer» B.                    6.2 m


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