Answer:
Height = 8ft
Step-by-step explanation:
Area of triangle = 60ft²
base of triangle = 15ft
[tex]area \: of \: triangle \: = \frac{1}{2} (base)(height) \\ \\ 60 = \frac{1}{2} (15)(height) \\ \\ \frac{60 {ft}^{2} \times 2}{15ft} = height \\ \\ 8ft \: = height[/tex]