geometry crossword

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Across
  1. 4. A line segment that divides a circle into two equal parts.
  2. 6. A three-dimensional figure with all sides and angles equal.
  3. 9. where two lines meet.
  4. 10. A closed shape with three or more straight sides
  5. 12. quadrilateral with opposite sides parallel and equal in length
Down
  1. 1. A shape with three sides.
  2. 2. A straight path that extends infinitely in both directions
  3. 3. A shape with four side and right angles.
  4. 5. A polygon with six side.
  5. 7. A line segment that connects two non-adjacent vertices of a polygon
  6. 8. The point where two lines meet or intersect
  7. 11. The measure of the amount of space enclosed by a shape