lines and angles

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Across
  1. 1. have a common side and common vertex
  2. 4. 2 rays are joined together at a common point
  3. 5. a sum that adds to 180
  4. 8. a sum that adds to 90
Down
  1. 2. a pair of matching sides that are in the same spot in two different shapes
  2. 3. the line which don't interesect
  3. 6. interesect parallel lines
  4. 7. which has a starting point but not ending point
  5. 9. more than 180 and less than 360