Geometry Crossword

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