\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A rectangle has length \(L = 8.5\) cm and width \(W = 4.2\) cm, both measured to 1 decimal place.
  1. Determine the lower and upper bounds for the length \(L\).
    Lower:
    \(\quad\) Upper:
  2. Determine the lower and upper bounds for the width \(W\).
    Lower:
    \(\quad\) Upper:
  3. Calculate the maximum possible perimeter of the rectangle.
  4. Calculate the minimum possible area of the rectangle.