We can use the formula for the area of a triangle to solve for the length of the base:
Area = (1/2) x base x height
We know that the area is 144 square feet and the height is 24 feet, so we can substitute those values into the formula:
144 = (1/2) x base x 24
To solve for the length of the base, we can first simplify the right-hand side of the equation:
144 = 12 x base
Dividing both sides by 12, we get:
12 = base
Therefore, the length of the base of the triangle is 12 feet.