Quadrilateral Crossword Puzzle

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Across
  1. 2. a circle that has been stretched in one direction, to give it the shape of an oval.
  2. 4. a closed two-dimensional polygon with six sides.
  3. 7. the space between two lines or planes that intersect
  4. 8. a parallelogram with four right angles
  5. 9. the cardinal number that is the sum of three and one
  6. 10. being everywhere equidistant and not intersecting
  7. 11. being directly across from each other
  8. 12. a place within a region identified relative to a center or reference location
  9. 14. a polygon with four equal sides and four right angles
Down
  1. 1. joining two opposite corners of a square, rectangle, or other straight-sided shape.
  2. 3. a subdivision of a particular kind of thing
  3. 5. a four-sided polygon
  4. 6. a geometrical shape, which has five sides and five angles.
  5. 8. a quadrilateral with both pairs of opposite sides parallel and all sides the same length.
  6. 13. having the same quantity, value, or measure as another