Geometry puzzle

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Across
  1. 1. 0 dimensional mathematical object
  2. 3. a line defined by two points
  3. 4. a part cut by a figure
  4. 7. in one direction
  5. 8. a measure for angles
  6. 11. lines intersect at a 90 degree angle
  7. 14. angle an angle bounded by two perpendicular lines
  8. 15. a vectre from point to point
  9. 16. lines lines on a plane that never meet.
  10. 17. angle the sides go in opposite directions from the vertex in a straight line
Down
  1. 2. lines two lines that share a point
  2. 3. angles
  3. 5. two rays meeting at and end point
  4. 6. the point farthest from the base of a geometrical figure
  5. 9. one dimensional figure that goes on
  6. 10. used to measure distance or draw a straight line
  7. 12. used to measure
  8. 13. a point halfway between middle and end