Geometry

123456789
Across
  1. 1. angle that measures < 90 degrees
  2. 4. angle that measures >90 but <180 degrees
  3. 5. a pair of angles that are adjacent and supplementary
  4. 7. angle that measures 90 degrees
  5. 8. angles that are congruent
Down
  1. 2. angles that add to be 90
  2. 3. angles that add to be 180
  3. 6. goes forever in both directions
  4. 9. has a starting point and goes forever in one way