Question

The area of a rectangular field is $\text{1600 sqm.}$ If the length of the field is $\text{80m}$, find the perimeter of the field.

Answer 1

Step 1: Finding the breadth of the rectangular field -

Area of the rectangular field = $\text{1600 sqm.}$

Length of the field = $\text{80m}$

Let the breadth of the field = $xm$

Area of the rectangular field = $\text{length × breadth}$

$$\begin{gathered} 80\times x=1600 \\ x=1600÷80 \\ x=20m \end{gathered}$$

Hence, the breadth of the field is $20m$

Step 2: Finding the perimeter of the rectangular field -

The perimeter of the rectangular field = $2\times \left(length+breadth\right)$

= $2\times (80+20)$

= $2\times 100$

= $200m.$

Hence, the perimeter of the rectangular field is $200m.$