Geometry Vocabulary

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Across
  1. 2. a shape with one pair of parallel lines
  2. 3. a shape with two sets of parallel lines
  3. 4. has 2 bases which parallel from each other
  4. 7. A shape that has no vertexes
  5. 8. a line that only continues in one direction
  6. 9. the perimeter of a circle
  7. 11. a row of points that continue forever
  8. 12. the space inside a 2D object
  9. 14. when 2 shapes are exactly the same
  10. 16. 2D shapes with 3 or more sides
  11. 19. when 2 angles add up to 90 degrees
  12. 20. a shape with 4 congruent angles and lines
Down
  1. 1. when two shapes are alike but different
  2. 5. the point where two lines cross
  3. 6. the border of a shape
  4. 10. 3 sided shape
  5. 13. when 2 angles add up to 180 degrees
  6. 15. the space inside a 3D object
  7. 17. a 3D shape that has one base
  8. 18. 1/2 of the diameter or the distance from the center of circle to the edge