Answer:
in this case you multiply your results to get the area for your dorm room so the formula to get the absolute error is deltaY = a*b*(deltaa/a+deltab/b)
so for you it would be DeltaS = L*W*(deltaL/L+deltaW/W) = 6.1*3.5*(0.1/6.1+0.1/3.5) = 0.96m^2
Explanation:
hope this helps got this off of the internet