We will begin by converting the lengths of the fence from feet to inches in the scale drawing.
We are given that 1 inch represents 2 feet in the fence. This means that:
![\begin{gathered} \text{If 1 inch represents 2 feet} \\ h=5ft\Rightarrow(5)/(2)in \\ b=12ft\Rightarrow6in \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/oc2xzoelzfqopjlk4a0awmgzisjpmkji7z.png)
The formula to calculate the area of a triangle is given to be:
![A=(1)/(2)bh](https://img.qammunity.org/2023/formulas/mathematics/high-school/9sstqki54txhbml6j22rcfvxwdjny9xtib.png)
Therefore, the area of the garden in the scale drawing will be:
![A=(1)/(2)*6*(5)/(2)=7.5in^2](https://img.qammunity.org/2023/formulas/mathematics/college/c6ni8pxrf89xdxbse5rd41txvvyxn191nk.png)
The area is 7.5 square inches.