Crossword

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Across
  1. 2. A rectangle with all sides equal
  2. 3. Two lines that never meet
  3. 6. longest side in a right triangle
  4. 9. A quadrilateral with one pair of parallel sides
  5. 11. A triangle with one angle of 90°
  6. 14. Two angles whose sum is 90°
  7. 19. An angle greater than 90° but less than 180°
  8. 20. A part of a line with one endpoint
Down
  1. 1. Two angles whose sum is 180°
  2. 4. An angle equal to 90°
  3. 5. Point where medians of a triangle intersect
  4. 7. A quadrilateral with both pairs of opposite sides paralle
  5. 8. The point where diagonals of a square meet
  6. 10. An angle less than 90°
  7. 12. A line segment joining opposite vertices of a quadrilateral
  8. 13. Two lines that meet at one point
  9. 15. A triangle with all sides equal
  10. 16. smallest geometrical figure having no dimension
  11. 17. The point where two lines meet
  12. 18. straight path extending infinitely in both directions, Line