Geometry vocabulary1

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Across
  1. 2. points on the same line
  2. 4. a point on a line and all points of the line to one side of it
  3. 5. in angle ABC, point B is the ....
  4. 6. two endpoints and all points between them
  5. 7. the middle point of a line segment
  6. 8. an angle formed by opposite rays
  7. 10. an angle whose measure is greater than 90
  8. 11. a flat figure with no thickness that extends indefinitely in all directions
Down
  1. 1. The four parts of a coordinate plane
  2. 2. points that lie in the same plane
  3. 3. the point where the x- and y- axis meet
  4. 9. an angle whose measure is less than 90
  5. 12. the set of all points collinear to two points