Geometry Puzzle

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Across
  1. 3. A line segment from the center of a circle to a point on a circle
  2. 6. A line with two end points
  3. 7. Two rays that meet at a common endpoint
  4. 9. The distance around a circle
  5. 10. To have the same measure
Down
  1. 1. The amount of space occupied by a 2-D figure
  2. 2. A line segment that passes through the center of a circle and has endpoints on the circle.
  3. 4. A common endpoint
  4. 5. The sum of the side measures around a 2-D figure
  5. 8. A closed shape formed with at least three line segments