Geometry Unit 1 Vocabulary

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Across
  1. 7. points and lines that lie on the same plane
  2. 10. has no size, is represented by a small dot
  3. 11. part of a line consisting of two endpoints and all the points between them
  4. 12. coplanar lines that do not intersect
  5. 13. series of points that extends in two opposite directions without end
  6. 14. angle that makes a line
  7. 16. perimeter of a circle
  8. 17. formed by two rays with the same endpoint
  9. 18. distance around a shape
Down
  1. 1. rays that are collinear with the same endpoint that form a line
  2. 2. amount of space inside a shape
  3. 3. angle between 90 and 180 degrees
  4. 4. point that divides a segment into two congruent segments
  5. 5. a statement accepted as fact
  6. 6. two segments with the same length are called
  7. 7. points that lie on the same line
  8. 8. flat surface with no thickness
  9. 9. 90 degree angle
  10. 14. noncoplanar lines that are not parallel and do not intersect
  11. 15. angle between 0 and 90 degrees
  12. 19. part of a line consisting of one endpoint and all the points of the line on one side of the endpoint