Geometry Vocabulary Crossword Puzzle

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Across
  1. 4. A mathematical statement proven to be true using logic and evidence
  2. 6. To divide something into two equal parts
  3. 8. The point exactly halfway between two endpoints
  4. 9. Having the same size and shape
  5. 10. Two angles whose measures add up to 180 degrees
Down
  1. 1. A triangle with at least two equal sides
  2. 2. A line that touches a circle at exactly one point
  3. 3. A property stating that any figure is congruent to itself
  4. 5. Segment from the center of a regular polygon perpendicular to a side
  5. 7. Describing points or objects that lie in a straight line