Find area of composite figure with rectangle having 20 as length and width of 8 and right angle of 6 on top

To find the area of the composite figure, we need to find the area of the rectangle and the triangle separately, and then add them together.

Area of rectangle = length x width
Area of rectangle = 20 x 8 = 160 square units

Area of triangle = 1/2 x base x height
Area of triangle = 1/2 x 6 x 8 = 24 square units

Now, add the areas of the rectangle and the triangle together:
Total area = 160 + 24 = 184 square units

Therefore, the area of the composite figure is 184 square units.