# Reflection of Overlapping Triangles

15. Are they still reflections of each other?
16. Move the mirror line so that the two triangles do NOT overlap. What is the equation of the mirror line, which caused the triangles not to overlap?
17. Are the triangles still congruent even though you moved the mirror line??
18. Do the triangles have same orientation (pointing the same direction)?
19. Is a reflection an isometry?

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