The given figure is has three sides and three vertices : Triangle
In the given triangle, height = 9.7 ft, base = 8.1 ft,
Area of triangle = 1/2 x Base x Height
Area of traingle = 1/2 x 8.1 x 9.7
Area of traingle = 39.28 ft²
Area of the given figure = 39.28 ft²