Given data:
base of a triangle = 24 feet
area of a triangle = 240 square feet.
To find: height of the triangle.
Thr formula for area of the triangle is,
[tex]A=\frac{1}{2}\cdot h\cdot b[/tex]to find the height,
[tex]\begin{gathered} h=2\frac{A}{b} \\ =2\cdot\frac{240}{24} \\ =20 \end{gathered}[/tex]Hence the height of the triangle is 20 feet.