Mathematics

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Across
  1. 2. it has only a location. it has no size, but it can be modeled by a dot.
  2. 4. a porrion of a line that has one endpoint and it is named by the endpoint
  3. 5. Portion of a line that has two endpoints.
Down
  1. 1. straight and has infinite length but don't have width and thickness and with two arrow heads on both sides.
  2. 3. two rays that have a coomon endpoint that point in opposite directions.