Quadrilateral Crossword Puzzle

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Across
  1. 2. A four-sided shape where all sides have equal length (marked "s").
  2. 4. Known as self-intersecting or crossed quadrilaterals.
  3. 5. The total distance covered by the boundary of a 2d shape.
  4. 8. is an aspect of a geometrical shape.
  5. 9. A quadrilateral in which the opposite sides are equal and parallel and each of its interior angles is 90°.
  6. 10. Both the diagonals of a quadrilateral are completely contained within a figure.
  7. 13. The total space occupied by the figure.
  8. 14. is a figure formed by two rays or lines that share a common endpoint.
Down
  1. 1. a quadrilateral in which one pair of opposite sides is parallel.
  2. 3. Has four equal sides.
  3. 5. It is a quadrilateral with two pairs of parallel sides.
  4. 6. Has two pairs of equal sides.
  5. 7. At least one of the diagonals lies partly or entirely outside of the figure.
  6. 11. is a point where two or more lines, edges, or sides of a geometric figure meet.
  7. 12. Has opposite sides parallel and equal in length.