Angle Relationships crossword

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Across
  1. 3. an angle that is more than ninety degrees but less than one-hundred and eighty degrees
  2. 7. two adjacent angles whose noncommon sides are opposite rays
  3. 8. an angle that is ninety degrees
  4. 9. two angles with a sum of ninety degrees
  5. 10. a tool to measure angles
  6. 11. an angle that is more than zero degrees and less than ninety degrees
  7. 13. units that angles are measured in
  8. 15. formed by two rays
Down
  1. 1. angles with equal measures
  2. 2. two intersecting lines
  3. 4. two angles with a sum of one-hundred and eighty degrees
  4. 5. an angle that is one-hundred and eighty degrees
  5. 6. two angles that share a ray
  6. 12. common point of two rays
  7. 14. one endpoint and extends on forever in one direction