Given data:
The area of the triangle is A=60 square feet.
The height of the triangle is h=12 feet.
The expression for the area of the triangle is,
[tex]A=\frac{1}{2}(b\times h)[/tex]Substitute the given values in the above expression.
[tex]\begin{gathered} 60\text{ square-ft=}\frac{1}{2}b(12\text{ ft)} \\ b=10\text{ ft} \end{gathered}[/tex]Thus, the base of the triangle is 10 ft.
