Click on the line below for the 5-96 Trapezoid Decomposer - Method 1 Student eTool (Desmos).
5-96 Trapezoid Decomposer - Method 1 Student eTool (Desmos)
Bottom half of each of the side triangles are rotated up to form a rectangle.
Top half where the parallel sides are at the top and bottom is rotated downward to form a parallelogram.