Posted by Nelly on Thursday, March 14, 2013 at 9:52am.
area=L*B
Length=area/breadth
change 50mm to 5 cm
First change cm to mm
350 cm = 3500 mm
Area = L x W
3500mm = L(50mm)
Divide to solve for L
Jane: the 350cm should be 350 cm^2, so in square mm, it would be 35000mm^2
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