Basic Vocabulary

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Across
  1. 3. on the same plane
  2. 8. intersecting at a 90 degree angle
  3. 11. a ray which divides an angle into two equal parts
  4. 12. a pair of adjacent supplementary angles
  5. 14. two angles which add to 90 degrees
  6. 18. the same distance
  7. 19. Geometrically Equal in terms of both size and shape
  8. 20. two rays with a common initial point but opposing directions
Down
  1. 1. an angle which measures less than 90 degrees
  2. 2. a piece of a line with one distinct endpoint
  3. 4. two angles which add to 180 degrees
  4. 5. two nonadjacent angles which are formed by intersecting lines
  5. 6. a line or line segment which intersects a line segment at a 90 degree angle and divides the line segment into two equal parts
  6. 7. a piece of a line with two distinct endpoints
  7. 9. an angle which measures 90 degrees
  8. 10. the point of intersection of the three perpendicular bisectors in a triangle
  9. 13. the point of origin of the two sides of an angle
  10. 15. two angles which share a common side
  11. 16. on the same line
  12. 17. the point of intersection of the three angle bisectors in a triangle
  13. 20. an angle which measure more than 90 degrees