Unit 1 Vocabulary

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Across
  1. 2. part of a line with two endpoints
  2. 5. the answer to a subtraction problem
  3. 7. a word describing points, lines, segments, rays, angles, or polygons that all lie in the same plane
  4. 8. two rays that share a common endpoint
  5. 9. one of the three undefined terms of geometry; refers to a two-dimensional flat surface that extends forever
  6. 11. the answer to an addition problem
  7. 12. one of the three undefined terms of geometry; refers to a one-dimensional straight path that extends forever
  8. 14. a rule that must be proven before accepting it as true
  9. 15. name given to a term that never changes value
Down
  1. 1. a rule that is accepted as true without proof
  2. 3. a group of terms with an equal sign
  3. 4. a group of terms without an equal sign
  4. 6. a word describing points, segments, or rays that all lie on the same line
  5. 10. one of the three undefined terms of geometry; refers to a sizeless single location in space
  6. 13. part of a line with only one endpoint