Question

Find the perimeter and area of a rectangle with width 5 cm in length 16 cm

Answer 1

The formulas to calculate the area (A) and perimeter (P) of a rectangle are given to be:

$\begin{gathered} A=lw \\ P=2(l+w) \\ where \\ l=length \\ w=width \end{gathered}$

From the question, we have the following parameters:

$\begin{gathered} l=16 \\ w=5 \end{gathered}$

Therefore, the area of the rectangle will be:

$\begin{gathered} A=16\times5 \\ A=80 \end{gathered}$

The perimeter of the rectangle will be:

$\begin{gathered} P=2(16+5) \\ P=2(21) \\ P=42 \end{gathered}$

ANSWERS:

$\begin{gathered} Perimeter=42\text{ cm} \\ Area=80\text{ cm}^2 \end{gathered}$