A capacitor is constructed commercial wrap two sheets of aluminum separated by two sheets of paper coated with paraffin. Each aluminum foil and paper has width of 7cm. A sheet of aluminum has [LaTeX Error: Can't write to directory] and thickness of paper is thick [LaTeX Error: Can't write to directory] and a dielectric constant of 3,70. What is the length that the leaves should be desired is the capacitance of 0.95 pF? (Capacitor as the parallel plates)

[LaTeX Error: Can't write to directory]
C is the capacitance(given)
[LaTeX Error: Can't write to directory] is the dielectric constant(given)
A is the area of contant between paper and aluminium plate
Length is to be found but width is given
d is the thickness(remember to multiply by 2)

Ok. Thank you