Across
- 2. An angle greater than 90 degrees but smaller than 180 degrees
- 6. Angles that add up to 180 degrees
- 7. An angle smaller than 90 degrees
- 8. A formula to find any term in a sequence
- 9. Two lines at a 90 degree angle
- 13. A four sided shape
Down
- 1. A number having more than two different factors
- 3. Equal and exactly the same size
- 4. Angles that add up to 90 degrees
- 5. A line joining two vertices which are not adjacent
- 10. Two lines that never intersect or meet each other
- 11. Next to each other
- 12. When the diagonals of a shape meet in the centre of the shape