Across
- 2. angle that is less than 90 degrees
- 9. surface of a shape, measured in units squared
- 10. Statement that is or can be proven e.g. Pythagoras has proved one
- 11. array of infinite points that are aligned with each other
- 12. distance around a circle
- 16. 2D shape with 6 sides
Down
- 1. the largest circle that can be contained in a triangle, with its center point being the intersection point of its bisectors
- 3. adjective used to describe 2 angles whose sum is 90 degrees
- 4. flat shape consisting of 4 sides with atleast 2 of those sides parallel to each other
- 5. surface that continues in all directions in 3D space
- 6. two lines that never intersect in 2D space
- 7. intersection point of two lines that form an angle
- 8. flat shape that has 4 sides of equal length with perpendicular diagonals
- 13. line that ends on one point and continues indefinitely on the other side
- 14. a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface
- 15. word describing 2 geometrical objects that have the same shape and size