Geometry Crossword

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Across
  1. 3. a figure with six straight lines and angles
  2. 5. the border of a shape
  3. 7. a vector from a point to a point on a line
  4. 8. a quadrilateral with one pair of opposite paralel sides
  5. 10. an angle less than 90 degrees
  6. 17. a quadrilateral that has 2 pairs of paralell sides that are equal
  7. 19. a four-sided figure
  8. 20. a point where two straight lines meet
Down
  1. 1. a measurement of an angle
  2. 2. when two objects have the same shape and size
  3. 4. the line segment that seperates one shapes face from the other
  4. 6. the distance from the center of the shape to any point on the boundry of the shape
  5. 9. an angle over 90 degrees
  6. 11. a shape with 3 straight lines and 3 angles
  7. 12. a figure with eight straight lines and angles
  8. 13. a shape with a circular base and sides tapering to a point
  9. 14. the total space inside a shape or object
  10. 15. a straight line from one side of the shape to the other
  11. 16. an angle of 90 degrees
  12. 18. 3 dimensional closed surface that is round