Quadrilateral Crossword

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Across
  1. 2. What do you call a four-sided polygon?
  2. 4. It connects opposite vertices.
  3. 5. Opposite vertices of a polygon.
  4. 7. Lines These are often referred to as 'enemy lines'.
  5. 9. What is a square?
  6. 10. two things differ from each other.
  7. 12. It divides the shape into two equal sides.
  8. 13. It means 'equal'.
  9. 14. They are called segments.
  10. 15. Congruence can be applied to line segments,_____, and figures.
Down
  1. 1. A quadrilateral that has two pairs of parallel sides.
  2. 3. Another name for shape.
  3. 6. It contains every point on the line that is between its endpoints.
  4. 8. The branch that handles the relationship of angles, points, measurements and the like.
  5. 11. Endpoints are referred to as?