A rectangle was drawn using a ruler, such that e
k /9p5 ;.d8 c5 thyulcisnyod;ach measurement has an uncertaint
.5p i8k5oy9;d / c;hluc ydstny of $0.5 \mathrm{~cm} .$
What is the absolute uncertainty in the area of the entire rectangle (i.e. combined small and big rectangles), in $\mathrm{cm}^2$ ?
$cm^2$ (Do not write units with the answer. Give your answer to 2 significant figures.)