This document lists different 2D shapes including rectangle, circle, triangle, square, pentagon, hexagon, and repeats rectangle and square. It appears to be listing common 2D shapes that one may encounter and be able to recognize.

1. 2D shapes How many can you recognise?

2. rectangle

3. circle

4. triangle

5. square

6. pentagon

7. triangle

8. hexagon

9. rectangle

10. square