Geometry

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Across
  1. 4. without rotating, resizing or anything else, just moving to a different quadrant
  2. 5. one side of a triangle and the extension of an adjacent side of the triangle.
  3. 7. a combination of a reflection and a translation
  4. 9. 4-sided flat shape with straight sides where opposite sides are parallel.
  5. 12. before th change of a transformation
  6. 13. always add to 180°
  7. 15. turning around a center
  8. 17. squares are made on each of the three sides
  9. 20. 5 sides
  10. 21. 4 straight sides
  11. 23. a slanted square
Down
  1. 1. between both endpoints
  2. 2. interior angles add up to 3 × 180° = 540°
  3. 3. a quadrilateral
  4. 6. they share a vertex and a side
  5. 8. four-sided flat shape where every angle is a right angle
  6. 10. up & down
  7. 11. an amount of space between two things or people.
  8. 12. Lines that are at right angles (90°) to each other
  9. 14. when you look at you ugly face in the morning in a mirror is your
  10. 16. The new position of a point, a line, a line segment, or a figure after a transformation
  11. 18. Always the same distance apart and never touching
  12. 19. enlarged or reduced by a given factor around a given center point
  13. 22. A straight line inside a shape that goes from one corner to another