Write T if the statement is true.Otherwise, write F.

1. Every square is a rectangle.
2. Every trapezoid is a parallelogram.
3. Every rectangle is a square.
4. Every rhombus is a square.
5. Every square is a rhombus.
6. Every parallelogram is a rectangle.
7. The opposite sides of a parallelogram are congruent.
8. The diagonals of a square are congruent.
9. The diagonals of any rectangle are perpendicular.
10. A parallelogram is a polygon.​