Geometry

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Across
  1. 4. touches a circle once
  2. 6. three sides polygon
  3. 8. smaller than 90 degrees
  4. 9. intersects a circle twice
  5. 10. cuts in half
Down
  1. 1. forms a right angle
  2. 2. three different sides
  3. 3. larger than 90 degrees
  4. 5. lines that never intersect
  5. 7. half of the diameter