Given:
The length of the rectangle is l = 18cm.
The width of the rectangle is w = 10cm.
The objective is to find the perimeter and area.
Explanation:
The general formula to find the perimeter of the rectangle is,
[tex]P=2(l+w)\text{ . . . . . (1)}[/tex]On plugging the given values in equation (1),
[tex]\begin{gathered} P=2(18+10) \\ =2(28) \\ =56\operatorname{cm} \end{gathered}[/tex]The general formula to find the area of the rectangle is,
[tex]A=l\times w\text{. . . . . (2)}[/tex]On plugging the given values in equation (2),
[tex]\begin{gathered} A=18\times10 \\ =180\operatorname{cm}^2 \end{gathered}[/tex]Hence, the perimeter of the rectangle is 56cm and the area of the rectangle is 180cm².
