Basic Geometry

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Across
  1. 2. angle is 180 degrees
  2. 5. angle between 90 and 180 degrees
  3. 7. a pair of angles that equal 180 degrees
  4. 9. an infinite set of points extends in both directions
  5. 11. angle is exactly 90 degrees
  6. 12. two angles add to 180 degrees
  7. 13. is a geometric object created by 2 rays
Down
  1. 1. the length of a straight line segment
  2. 3. angle between 0 to 90 degrees
  3. 4. two angles add to 90 degrees
  4. 6. angle between 180 and 360 degrees
  5. 8. an infinite set of points extends in one direction
  6. 10. has 3 points on one line