Plot width calculation

Two brothers wanted to have the same area of land. One chose a square plot with a side length of 60 m. The second brother chose a rectangular plot of land with a side length of 80 m. What is the width of the second brother's plot?

Final Answer:

x =  45 m

Step-by-step explanation:

$$\begin{gathered} a=60\text{m} \\ S=a\cdot a=60\cdot 60=3600{\text{m}}^2 \\ b=80\text{m} \\ S=b\cdot x \\ x=S/b=3600/80=45\text{m} \end{gathered}$$

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