Geometry Crossword Puzzle

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Across
  1. 4. corner of a triangle
  2. 5. is the distance from the center of the circle to its circumference
  3. 6. intersection of the perpendicular bisectors of a triangle
  4. 8. a line that intersects a circle in two points
  5. 9. a line that intersects a circle in one point
  6. 10. has its endpoints on the circle
Down
  1. 1. intersection of the altitudes in a triangle
  2. 2. point in the middle of the segment
  3. 3. segment from the vertex to the midpoint of the opposite side
  4. 7. intersection of the medians in a triangle