Question

@jdoe0001

Answer 1

so that would narrow it down

Answer 2

A

Answer 3

\(\bf R_m\\
(\textit{triangle 2})\implies \textit{triangle 2 reflected over line "m"}\)

and if you reflect, that is put a mirror on line "m" to reflect 2, then you'd end up with triangle 1

Answer 4

B :)