Quadrilaterals and polygons

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Across
  1. 3. two lines that run side by side but will never meet
  2. 5. two parallel sides, the other sides are equal
  3. 8. a square with angles that are all different
  4. 9. closed 2D shape with straight, equal sides and equal angles
  5. 10. four equal sides, 4 equal angles
Down
  1. 1. four sides, two parallel sides
  2. 2. closed 2D shape with straight, unequal sides and equal angles
  3. 4. quadrilateral with four parallel sides OR two pairs of parallel sides, opposite sides are equal
  4. 6. quadrilateral with two pairs of parallel sides OR quadrilateral with four parallel sides
  5. 7. closed 2D shape with straight lines