Geometry Vocabulary

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Across
  1. 3. The distance around a shape.
  2. 9. Two angles are ____ if their measures have a sum of 180 degree.
  3. 12. A triangle where all sides are congruent.
  4. 13. The ratio of the lengths of corresponding sides of an image and a preimage.
  5. 15. Points that lie in the same plane
  6. 17. Two angles are ____ angles when they lie between two lines and on opposite sides of the transversal.
  7. 20. A set of points consisting of two different rays that have the same endpoint.
  8. 21. A transformation that moves every point the same distance in the same direction.
  9. 24. A triangle with 2 congruent sides.
  10. 25. A transformation that turns a figure about a fixed point.
  11. 26. Two line that do not intersect and are not coplanar.
Down
  1. 1. Consists of two endpoints and all points between
  2. 2. A polygon with 8 sides.
  3. 3. Two lines that intersect to form a right angle.
  4. 4. A segment that connects the midpoints of two sides of a triangle.
  5. 5. A polygon with 4 sides.
  6. 6. A transformation that enlarges or reduces a figure.
  7. 7. Two lines that do not intersect and are coplanar.
  8. 8. A transformation that uses a line like a mirror to flip a figure.
  9. 10. A triangle with no congruent sides.
  10. 11. An angle that measures more than 90 degrees and less than 180 degrees.
  11. 14. Segments that have the same length are ___.
  12. 16. The point that divides a segment into two congruent segments
  13. 18. A triangle with 3 angles less than 90 degrees.
  14. 19. An angle that measures 90 degrees.
  15. 22. Has no dimension; represented by a dot
  16. 23. To cut into two equal parts.