In order to calculate the triangle height, we can use the formula for the area of a triangle:
[tex]A=\frac{b\cdot h}{2}[/tex]Where A is the area, b is the base and h is the height.
So, for A = 207 and b = 18, we have:
[tex]\begin{gathered} 207=\frac{18\cdot h}{2} \\ 207=9h \\ h=\frac{207}{9} \\ h=23 \end{gathered}[/tex]Therefore the height is 23 feet.
