Geometry Unit 2 - Important Terms (1-5)a line which is rotated 180 degrees about a point

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Across
  1. 5. when connecting a point to its reflection across a line, the line of connection will always be _____ to the line of reflection
  2. 6. rotations preserve the _____ between points, and hence the length of line segments
  3. 8. designated symbolically as R(x,y)
  4. 10. triangle
  5. 11. in an isosceles triangle the _____ angles are
  6. 14. a rigid motion that simply slides an object without rotating or reflecting it
  7. 15. a line which is rotated 180 degrees about a point not on the line will always result in another line that is ______ to the original
  8. 16. designated symbolically as r(x°)
Down
  1. 1. congruent
  2. 2. the line created by reflecting a point across another line will always hit the original line at its ______
  3. 3. a function (rule) that for every point, P, in the plane as its input gives another, single point in the place, F(P), as its output
  4. 4. the angle bisector of the ______ angle will always be the perpendicular bisector of the base of the
  5. 7. triangles with at least two sides of equal length (called legs)
  6. 9. rotations preserve _____ between lines, rays, and segments
  7. 12. only translations map lines to _____ lines
  8. 13. a line which is rotated 180 degrees about a point on the line will simply produce the same line