Math Crossword

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Across
  1. 3. Two congruent angles opposite of each other
  2. 7. A Bisector that divides an angle into two equal parts
  3. 8. Two lines that intersect one another
  4. 9. Two lines that meet at a right angle
  5. 10. A triangle with two equal sides
  6. 13. A triangle with all angles smaller than 90 degrees
  7. 14. A triangle with no equal sides
  8. 16. Two angles in matching corners
  9. 18. Angle is greater than 90 degrees but smaller than 180 degrees
  10. 19. Angle is exactly 180 degrees
  11. 20. A line that crosses a set of parallel lines
  12. 21. Angle is exactly 90 degrees
Down
  1. 1. A triangle with an angle exactly 90 degrees
  2. 2. A triangle with three equal sides
  3. 4. Two congruent angles on opposing sides of the transversal line
  4. 5. A triangle with an angle larger than 90 degrees but smaller than 180 degrees
  5. 6. Two lines having the same distance between them continuously
  6. 11. Two or more angles with the sum of 180 degrees
  7. 12. Two or more angles with the sum of 90 degrees
  8. 13. Angle is less than 90 degrees
  9. 15. A line that joins through alternative sides
  10. 17. The angles on the inside of a polygon or 2 parallel lines (with a transversal)