Geometry Crossword

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Across
  1. 2. Segment part of a line with two end points
  2. 3. the amount of space inside a 3D object
  3. 5. a set of points all the same distance from a center point
  4. 6. the amount of space inside a shape
  5. 8. a polygon with three sides
  6. 9. Lines that intersect to form right angles
  7. 12. the total distance around a figure
  8. 13. when a shape can be divided into matching halves
  9. 15. Lines that never intersect and stay the same distance apart
  10. 17. a straight path that goes on forever In both directions
  11. 19. a polygon with 4 sides
Down
  1. 1. the distance around a circle
  2. 4. a segment across a circle through the center; twice the radius
  3. 7. two rays that meet at a common end point
  4. 10. part of a line with one endpoint that goes on forever In one direction
  5. 11. the total area of all the outer surfaces of a 3D object
  6. 12. an exact location with no size
  7. 14. a closed figure made of straight line segments
  8. 16. a segment from the center of a circle to its edge
  9. 18. the point where two lines or rays meet