Geometry terms

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Across
  1. 2. a line between two endpoints
  2. 3. a flat surface that extends indefinitely
  3. 6. a location usually labelled with a capital letter
  4. 7. lines that will never meet
  5. 8. more than two lines that meet at the same point
  6. 9. angles at a point that share a common arm
Down
  1. 1. two lines intersect at right angles
  2. 4. the lines that meet to form an angle
  3. 5. three or more points lie on a straight line