Geometry Semester 1 Vocabulary

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Across
  1. 2. lines that do not intersect and are not parallel
  2. 4. angles that add up to 90 degrees
  3. 5. 2-dimensional shape that can fold into a 3-dimensional shape
  4. 7. lines that intersect each other at a right angle
  5. 9. lines that never intersect each other
  6. 13. an angle equal to 180 degrees
  7. 14. angles that are right next to one another
  8. 15. lines that touch one another
  9. 16. formed by 2 rays, lines, or segments at their intersection
  10. 17. the midpoint of a segment bisector is the point at which the lines are divided into two halves
  11. 18. a straight path that extends forever in both directions
  12. 19. an angle more than 90 degrees
  13. 20. a location represented by a dot
Down
  1. 1. part of a line that has two end points
  2. 2. angles that add up to 180 degrees
  3. 3. an angle less than 90 degrees
  4. 6. part of a line that has one end point
  5. 8. tool to measure angles
  6. 10. an angle equal to 90 degrees
  7. 11. the sum of the lengths of two segments is equal to the third segment
  8. 12. a flat surface that extends forever in all directions