Across
- 4. a shape with no eual angles or sides
- 6. a quarter of a circle
- 7. this number is used in cricle calculations
- 9. 1000 metres
- 12. 10 millimetres
- 13. a square that has a side of 100 metres
- 14. a triangle with 3 equal sides
- 15. means half
- 16. the distance around the boundary of a shape
- 18. a shape made up from others
Down
- 1. we do this to the radius when finding the area
- 2. a shape with 4 sides
- 3. the middle of a circle
- 5. the longest chord of a circle
- 8. a formula named after this person - uses 3 sides of a triangle.
- 10. the primeter of a circle
- 11. a slice of a circle
- 17. the distance from the centre to a point on the circle