Crossword Puzzle Project

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Across
  1. 1. Point where perpendicular bisectors meet; equidistant from vertices.
  2. 3. Triangles Triangles with equal sides and angles.
  3. 6. All angles are less than 90 degrees (Triangle).
  4. 10. Angle Theorem Exterior angle equals sum of remote interior angles.
  5. 12. Three matching sides guarantee congruence.
  6. 13. Bisector Line cutting a side in half at 90 degrees.
  7. 15. Has one 90 degree angle (Triangle).
  8. 18. Bisector Line dividing an angle into two equal angles.
  9. 19. Connects a vertex to the midpoint of the opposite side.
  10. 20. Sum Theorem Interior angles add up to 180 degrees.
Down
  1. 2. Three equal sides and three equal 60 degree angles (Triangle).
  2. 4. All sides and angles are different (Triangle).
  3. 5. Segment from a vertex perpendicular to the opposite side.
  4. 7. Has one angle greater than 90 degrees (Triangle).
  5. 8. Point where medians meet; center of mass.
  6. 9. Point where angle bisectors meet; equidistant from sides.
  7. 11. Point where altitudes meet.
  8. 14. Two equal sides and two equal base angles (Triangle).
  9. 16. A polygon with three sides.
  10. 17. Inequality Theorem Any two sides must sum to more than the third.