Which transformation of the plane can we use to prove angles and vare
congruent, and why?
Choose 1 answer:
A
B
t
A reflection over a line through O that is parallel to KL and
MN maps ray LK onto MN and vice versa, and the same for
rays LO and MO. This means angle will be mapped onto angle
vand vice versa.
A translation along the directed line segment ML maps line MN
onto line KL and angle v onto angle u.
A 180° rotation about O maps ray LK onto MN and vice versa,
and the same for rays Lo and MO. This means angle u will be
mapped onto angle v and vice versa.