<PRE><B>Question 315631</B>
How do I find the LENGTH of a CUBOID with the width of 12mm, height of 6cm and the Total Surface Area of 468cm^2 
:
 2(L*W) + 2(L*H) + 2(W*H) = S.A.
:
2(12L) + 2(6L) + 2(12*6) = 468
:
24L + 12L + 2(72) = 468
:
36L + 144 = 468
:
36L = 468 - 144
:
36L = 324
L = {{{324/36}}}
L = 9 mm is the length
:
You can check solution in the original Surface area equation</PRE>