Informal Geometry Vocabulary

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Across
  1. 1. ______ Angles: two nonadjacent angles formed by two intersecting lines
  2. 5. The length of a line segment that connects two points
  3. 7. A series of connected points that extends forever in two directions
  4. 8. Points that all lie on the same plane
  5. 10. Two angles that have a sum of 90
  6. 14. Lines that intersect to form a right angle
  7. 15. Points that all lie on the same line
Down
  1. 2. Two angles that have a sum of 90
  2. 3. A line that cuts a segment or angle in half
  3. 4. ______ Angles: are two angles that lie in the same plane, have a common vertex, and a common side
  4. 6. A word that means two lines or angles have the same measure
  5. 9. ______ Pair: a pair of adjacent angles with noncommon sides that are opposite rays
  6. 11. An important location that is usually marked by a capital letter
  7. 12. The point that is halfway between the endpoints of a segment
  8. 13. A flat surface made up of points that extends infinitely in all directions