1, first put a big triangle, as shown in the figure below:

2, and then put another big triangle, as shown in the figure below:

3, then put a triangle, as shown in the figure below:

4, then put a small triangle, as shown in the figure below:

5. Add a square. Remember that this square and small triangle form a trapezoid, as shown in the figure below:

6, then put a small triangle, as shown in the figure below:

7. Finally, put in the parallelogram and the puzzle will be assembled, as shown in the following figure: