The height of a triangle is one-third of its base. If the height is 9 ft, what is the area of the triangle?

The height is 1/3 of its base. So, 9 = 1/3 of the base. So, the base is 27.

We know that the formula for area of a triangle is 1/2 (b) (h)

So, 1/2 (27) (9) = 121.5

So, the area of the triangle is 121.5