Across
- 3. expressions that have variables in them
- 5. deals with variables and constants to devise general rule
- 7. x × y = y × x
- 8. symbol that represents an unknown number
- 9. a polygon with five sides
Down
- 1. Closed shapes with equal measure of angles and sides
- 2. x × (y + z) = x × y + x × z
- 4. x + y = y + x
- 6. space within the boundary of a closed shape
- 9. Distance along the boundary of a closed figure