Geometry Yusuf Maxime

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