Crossword Puzzle

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Across
  1. 4. A triangle has two same lines.
  2. 5. The intersection of three bisectors.
  3. 7. The length of a figure.
  4. 9. Intersection of three perpendicular lines
  5. 11. The most common three-sided figure's name.
  6. 13. The shortest distance in the graph.
  7. 15. The most common four-sided
  8. 16. A parallelogram with two right angle.
  9. 17. A rectangle with two adjacent sides equal.
Down
  1. 1. The intersection of three perpendicular bisectors
  2. 2. A triangle has three different lines.
  3. 3. Divide a line equally and vertically
  4. 6. Divide a line into two equal parts.
  5. 8. A parallelogram with two adjacent sides equal
  6. 10. The most special triangle, with 3 same lines.
  7. 12. Two sets of parallel quadrilateral
  8. 14. The center of the graph.