Geometry

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Across
  1. 3. Four right angles
  2. 5. A 3D circle
  3. 10. A line going through a circle at the middle
  4. 12. The distances around a circle
  5. 14. A shappe being flipped over a line
  6. 15. Two lines that never cross
  7. 16. (x₁+x₂2,y₁+y₂2)
  8. 18. Part of a line
  9. 19. The study of shapes
  10. 20. Total space taken up by a 2D shape
Down
  1. 1. The amount of space between two points
  2. 2. the space between two lines that meet at a point
  3. 4. The lines that passes through the center of a circle
  4. 6. A shape with one pair of parallel lines
  5. 7. Divide a line in two equal parts
  6. 8. Straight figure that extends infinitely
  7. 9. A solid geometric figure
  8. 11. Δy/Δx
  9. 13. Tool used to make a circle
  10. 17. The amount of space a shape holds