Geometry Vocabulary

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Across
  1. 3. A transformation that uses a line like a mirror to flip a figure.
  2. 6. Two angles are ____ ____ angles when they are between two lines and on opposite sides of a transversal.
  3. 8. This indicates how much a figure will enlarge or reduce.
  4. 10. A triangle with 2 congruent sides.
  5. 12. A triangle with no congruent sides.
  6. 14. To cut into 2 equal parts.
  7. 15. The point that divides a segment into 2 congruent segments.
  8. 17. A part of a line that extends indefinitely in one direction.
  9. 20. Two line that do not intersect and are not coplanar.
  10. 21. A transformation that moves every point the same distance in the same direction.
  11. 24. A segment that connects the midpoints of two sides of a triangle.
  12. 25. Segments that have the same length are ____.
  13. 26. Two lines that do not intersect and are coplanar.
  14. 27. A triangle where all sides are congruent.
Down
  1. 1. A triangle with 3 angles less than 90 degrees.
  2. 2. An angle that measures 90 degrees.
  3. 4. Points that lie in the same plane.
  4. 5. Formed by two rays with a common endpoint.
  5. 7. A transformation that turns a figure around a fixed point.
  6. 9. The distance around a shape.
  7. 11. a measurable part of a line consisting of 2 endpoints.
  8. 12. Two angles are ____ if their measures have a sum of 180 degrees.
  9. 13. Two lines that intersect to form a right angle.
  10. 16. A flat surface.
  11. 18. A transformation that enlarges or reduces a figure.
  12. 19. Two angles across from each other on intersecting lines.
  13. 22. A location in space with no size or shape; represented by a dot.
  14. 23. An angle that measures more than 90 degrees and less than 180 degrees.