2D Shapes and Polygons Crossword Puzzle

123456789101112131415161718192021
Across
  1. 2. A triangle with 3 congruent (equal) sides
  2. 4. A quadrilateral with only one pair of parallel sides
  3. 6. Any polygon with 8 sides and vertices
  4. 10. A triangle with only one angle larger than 90°
  5. 15. Any polygon with 4 sides and vertices
  6. 16. Any polygon with 10 sides and vertices
  7. 17. Any polygon with 5 sides and vertices
  8. 18. A parallelogram with all right angles (90°)
  9. 20. A triangle with two congruent (equal) sides
  10. 21. A parallelogram with all congruent (equal) sides
Down
  1. 1. A fully closed, 2D figure, with all straight sides.
  2. 3. Any polygon with 6 sides and vertices
  3. 5. Any quadrilateral that has opposite parallel sides
  4. 7. A triangle with a right (90°) angle
  5. 8. A triangle with all angles less than 90°
  6. 9. A triangle with no congruent (equal) sides
  7. 11. A rectangle with four congruent sides and all right angles (90°)
  8. 12. Any polygon with 7 sides and vertices
  9. 13. One point or "corner" on a shape; where 2 sides meet
  10. 14. Any polygon with 3 sides and vertices
  11. 17. Lines that will never intersect are...
  12. 19. Any polygon with 9 sides and vertices