lookywaticando
Feb 11, 2008, 06:44 PM
OK so I have looked this up and still have yet to figure out remotely even how to do this problem
problem: A=2(wl+wh+lh) solve for w (surface area of a rectangular box)
JBeaucaire
Feb 11, 2008, 07:30 PM
A box has 3 dimensions
Height
Length
Width
If Height = 4, Length = 5 and Width = 3, then use that to complete your own formula:
A=2(wl+wh+lh)
A=2((3*5) + (3*4) + (5*4))
A=2(15+12+20)
A=2(47)
A=94
Now that you understand the process, you can figure out any one of the dimensions if you know the other 3, If you know AREA & WIDTH & LENGTH, you can use algebra to work backwards and figure out the HEIGHT.