Chapter 4

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Across
  1. 1. transformation around a fixed point called center of rotation (turn)
  2. 4. the angle formed by two adjacent sides of a polygon
  3. 6. formed by one side of a triangle and the extension of an adjacent side
  4. 8. another word for congruence transformation
  5. 9. triangle with 3 acute angles
  6. 10. original geometric figure
  7. 11. transformation over a line called line of reflection (flip)
  8. 14. or matching parts of another polygon
  9. 21. not adjacent to the exterior angle
  10. 22. the position of the image may differ from the Preimage
  11. 24. theorem with a proof that follows as a direct result of another theorem
Down
  1. 1. triangle with one right angle
  2. 2. two congruent sides of an isosceles triangle
  3. 3. uses statements written in boxes and arrows to show logical progression
  4. 5. when geometric figures are the same shape and size
  5. 7. all the parts of one polygon are congruent
  6. 12. side located between two consecutive angles of a polygon
  7. 13. extra line or segment drawn in a figure to help analyze it
  8. 15. triangle with 3 congruent acute angles
  9. 16. triangle with 1 obtuse angle
  10. 17. the new figure
  11. 18. angle with the sides that are the legs
  12. 19. moves all points the same distance in the same direction (slide)
  13. 20. 2 angles formed by the base and the congruent sides
  14. 22. use figures in a coordinate plane to prove geometric concepts
  15. 23. operation the maps an original geometric figure