Geometry Vocabulary

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Across
  1. 2. lines that meet or cross at a common point
  2. 5. a set of points that extends forever in opposite directions
  3. 6. intersecting lines that form four right angles
  4. 7. names a location in space
  5. 9. goes on forever in one direction
  6. 10. measures 180 degrees
  7. 11. a tool to measure angles
  8. 12. a flat surface that extends indefinitely in all directions
  9. 13. measures less than 90 degrees
Down
  1. 1. the part of a line between two endpoints
  2. 3. the ends of a line segment
  3. 4. the common endpoint of an angle
  4. 7. lines in the same plane that never intersect
  5. 8. measures more than 90 degrees, but less than 180 degrees
  6. 9. forms a square corner, measures 90 degrees
  7. 13. formed by two rays with the same endpoint