geometry crossword12345

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Across
  1. 4. A line that goes from one corner to the other
  2. 7. Formed by two chords that share an endpoint
  3. 9. Relationship between things in equal ratios
  4. 11. Lines that meet at a vertex
  5. 13. All edges point outwards
  6. 15. Half of a circle
  7. 17. When things are identical in form
  8. 18. How much of something a 3d shape can hold
  9. 19. The height of an object
  10. 20. A portion of the circumference of a circle
Down
  1. 1. Adjacent divided by the hypotenuse
  2. 2. Three or more points which lie in the same plane
  3. 3. A segment connecting the midpoints of the sides
  4. 5. A triangle with 3 acute angles
  5. 6. Line segment joining a vertex to the midpoint
  6. 8. A triangle with 2 sides that are the same
  7. 10. A line that splits an angle into two equal angles
  8. 12. A line segment connecting two points on a curve
  9. 14. The study of triangles
  10. 16. A number that can't be made by dividing 2 integers