Crossword

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Across
  1. 1. An angle that measures greater than 0 degrees but less than 90 degrees
  2. 6. A parallelogram with four equal and congruent sides
  3. 9. The side of the triangle that is opposite to the right angle
  4. 11. A polygon with four sides and four angles
  5. 12. Lines that cross each other at exactly one point
  6. 15. Has three angles and three sides and has angle sum as 180 degrees
  7. 16. A parallelogram whose opposite sides are equal with four right angles
  8. 18. Two lines that intersect to form four right angles
  9. 19. A quadrilateral whose opposite sides are equal and parallel
  10. 20. A quadrilateral with exactly one pair of parallel side
Down
  1. 2. A triangle with equal sides and equal angles
  2. 3. Triangle with no congruent sides
  3. 4. Lines in the same plane that never intersect but are always at an equal distance
  4. 5. An angle whose measure is 180 degrees
  5. 7. A polygon with five sides and five angles
  6. 8. An angle that has a measure of 90 degrees
  7. 10. An angle that measures greater than 90 degrees but less than 180 degrees
  8. 13. A parallelogram with four equal sides and angles
  9. 14. line segment between two points on a given curve
  10. 17. A part of line having only one end point
  11. 19. A position in a space