Geometry Crossword

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Across
  1. 5. cuts a line segment in half
  2. 6. crosses at 90 degree angles
  3. 7. intersection of the medians of a triangle
  4. 9. intersection of the angle bisectors of a triangle
  5. 11. intersection of the altitudes of a triangle
  6. 12. points on the same line
Down
  1. 1. a line that measures the length of a shape from one end to another
  2. 2. having the same size and shape
  3. 3. intersection of the perpendicular bisectors of a triangle
  4. 4. point in the middle of a line segment
  5. 8. half the diameter
  6. 10. never intersects