The rule of the area of the rectangle is
[tex]A=b\times h[/tex]b is the length of the rectangle
h is the width of the rectangle
Since h = 8 ft
Since A = 144 ft^2
Then substitute them in the rule above to find b
[tex]\begin{gathered} 144=b\times8 \\ 144=8b \end{gathered}[/tex]Divide both sides by 8
[tex]\begin{gathered} \frac{144}{8}=\frac{8b}{8} \\ 18=b \end{gathered}[/tex]The length of the rectangle is 18 feet
The rule of the perimeter of the rectangle is
[tex]P=2(b+h)[/tex]Substitute b by 18 ft and h by 8 feet
[tex]\begin{gathered} P=2(18+8) \\ P=2(26) \\ P=52\text{ feet} \end{gathered}[/tex]The perimeter of the rectangle is 52 feet------- (16 + 36) ft
