Answer:
24 cm
Step-by-step explanation:
[tex]\boxed{\begin{minipage}{5 cm}\underline{Perimeter of a rectangle} \\\\$P=2(w+l)$\\\\where:\\ \phantom{ww}$\bullet$ $w$ is the width.\\ \phantom{ww}$\bullet$ $l$ is the length. \\\end{minipage}}[/tex]
Given values:
Substitute the given values into the formula:
[tex]\begin{aligned}P&=2(w+l)\\\implies P&=2(4+8)\\&=2(12)\\&=24\;\; \sf cm\end{aligned}[/tex]
Therefore, the perimeter of the rectangle is 24 cm.
