Crossword Puzzle

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