Answer :
ANSWER
[tex]96\text{ inches}[/tex]EXPLANATION
The area of a triangle is:
[tex]A=\frac{1}{2}b\cdot h[/tex]We are given that:
[tex]\begin{gathered} A=8\text{ ft} \\ b=2\text{ ft} \end{gathered}[/tex]Substitute those into the formula above:
[tex]\begin{gathered} 8=\frac{1}{2}\cdot2\cdot h \\ \Rightarrow h=\frac{2\cdot8}{2} \\ h=8\text{ ft} \end{gathered}[/tex]That is the height in feet.
To convert it to inches, multiply the height in feet by 12. That is:
[tex]\begin{gathered} 8\cdot12 \\ \Rightarrow96\text{ inches} \end{gathered}[/tex]That is the height in inches.