Geometry Chapter 1 Vocabulary

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Across
  1. 4. what we call two angles when their sum is 180 degrees
  2. 6. a ray that divides an angle into two congruent angles
  3. 11. an angle that measures less than 90 degrees
  4. 12. same size and shape
  5. 14. a closed figure with a finite number of sides and no curves
  6. 16. same-sizesize angles
  7. 17. part of a line that has one endpoint and goes in one direction infinitely
  8. 18. a figure before a transformation occurs
Down
  1. 1. what we call two angles when their sum is 90 degrees
  2. 2. made with three noncollinear points
  3. 3. two lines that intersect at a right angle
  4. 4. a line, plane, ray, or segment that goes through the midpoint of a segment
  5. 5. formed by two rays that share a common endpoint
  6. 7. same-size sides
  7. 8. two nonadjacent angles formed by two intersecting lines
  8. 9. part of a line that has two endpoints
  9. 10. on the same line
  10. 13. a figure after a transformation has occurred
  11. 15. an angle that measures between 90 and 180 degrees