geometry crossword

2. if a sequence of rigid transformations can take the first figure onto the second figure, then the two figures are...
6. a shape that is always similar
7. sum theorem the three angle measures of all triangles always sum to 180 degrees
9. the factor by which every length in an original figure is increased/decreased by to create a scaled copy
11. a rigid transformation that takes a figure from one place to another without rotating, reflecting or changing it's size
12. a rigid transformation that takes one point to another point that is the same distance from the given line, on the other side of the line.
13. if there is a sequence of rigid transformations and dilations that takes the first figure so that it fits exactly over the second
14. two angles that sum to equal 180 degrees
15. after a sequence of rigid transformations, the second figure is known as this
16. the space between two intersecting lines, often measured in degrees
17. transformation rotations, translations, and reflections are all examples of this

1. lines with slops that are opposite reciprocals
3. if two parallel lines are cut by a transversal, then these are angles are congruent
4. two angles that sum to equal 90 degrees
5. each of the pairs of opposite angles made by two intersecting lines
8. lines that have equal slopes
10. a line that divides an angle into two equal angles