Geometry Vocabulary 1

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Across
  1. 1. a point that divides a segment into two congruent segments
  2. 3. divide into two congruent parts
  3. 4. undefined term, has no dimension and usually represented by a dot
  4. 6. part of a line consisting of two points endpoints, and all points between them
  5. 9. points that lie on the same line
  6. 10. undefined term, two-dimensional, flat surface that has no thickness and extends forever
  7. 11. segments that have the same length
  8. 12. part of a line that starts at an endpoint and extends forever in one direction
Down
  1. 2. a statement that is accepted as true without proof; also called an axiom
  2. 5. a statement that can be proven true
  3. 7. points that lie on the same plane
  4. 8. undefined term, has one dimension, extends without end in two directions