Geometry Crossword Puzzle

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Across
  1. 2. unit of measure on angles
  2. 4. has two dimensions which are height and width
  3. 6. where 2 lines meet
  4. 10. 3 sided shape
  5. 13. changing the position of a figure
  6. 15. triangle triangle 90 degree angle
  7. 18. two angles that add up to 90 degrees
  8. 19. lines that never touch
  9. 20. shape with 6 sides
Down
  1. 1. two angles that add up to 180 degrees
  2. 3. transformation that flips a shape over a line
  3. 5. has three dimensions which are height, width and depth
  4. 7. angle that is greater than 90 degrees
  5. 8. moves a figure from one location to another without changing its size
  6. 9. 4 equal sides
  7. 11. 2 pairs of parallel sides
  8. 12. angle that is less than 90 degrees
  9. 14. shape with 8 sides
  10. 16. shape with no sides or angles
  11. 17. angle angle that forms a straight line