Geometry Vocab

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Across
  1. 2. a formal and logical step by step explanation
  2. 3. an object that cuts another in half
  3. 8. two coplanar lines that never intersect
  4. 11. two angles next to each other along a line
  5. 12. a transformation that flips a figure over a line
  6. 13. a line that intersects two other lines
  7. 17. the phrase used to describe the slopes of perpendicular lines
  8. 18. the type of angle that is exactly 180 degrees
  9. 19. a transformation that slides a figure left, right, up, or down
Down
  1. 1. a figure that has no size; just a location
  2. 4. the ratio of the change in y-values versus the change in x-values of a line
  3. 5. a transformation that turns a figure
  4. 6. a part of a line that has a starting point but no end
  5. 7. a part of a line with two endpoints
  6. 9. two lines that intersect at 90 degrees
  7. 10. a transformation that makes a figure bigger or smaller
  8. 14. the type of angle that is exactly 90 degrees
  9. 15. angles across from each other that are congruent
  10. 16. A point that cuts a line segment into two congruent segments