Myla's FAMOUS Geometry Puzzle

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Across
  1. 4. the distance around the circle.
  2. 6. a statement that two ratios are equal.
  3. 8. two angles with a common side and the same vertex.
  4. 10. two angles that form a straight line.
  5. 16. an isometry that maps all points of a figure the same distance in the same direction.
  6. 18. a transformation in which the preimage and image are congruent.
  7. 19. the original figure.
Down
  1. 1. the resulting figure.
  2. 2. noncoplanar lines
  3. 3. figures in the same plane.
  4. 5. two angles that form a right angle.
  5. 7. a comparison of two quantities.
  6. 9. opposite angles formed by intersecting lines.
  7. 10. the part of the line consisting of two endpoints and all points between them.
  8. 11. an accepted statement or fact.
  9. 12. the set of all points in a plane that are given distance, the radius, from a given point, the center.
  10. 13. formed by two rays with the same endpoint.
  11. 14. the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint.
  12. 15. points that lie on the same line.
  13. 17. coplanar lines that do not intersect.