A rectangle has a length of (2.9 ± 0.2) m and a width
of (1.6 ± 0.2) m. Calculate the area and the perimeter of
the rectangle, and give the uncertainty in each value.
a.) Calculate the area and give its uncertainty. (Enter
your answers in m2.)
b.) Calculate the perimeter of the rectangle and give its
uncertainty. (Enter your answers in m.)