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