We know that
• The scale is 1 inch = 35 feet.
,• Her model is 4 inches long and 1 inch wide.
To find the actual area, first, we find each actual dimensions by just multiplying.
[tex]\begin{gathered} l=4\cdot35=140 \\ w=1\cdot35=35 \end{gathered}[/tex]Then, we multiply the dimensions to find the actual area of the base.
[tex]A=l\cdot w=140\cdot35=4900ft^2[/tex]