HELP ASAP Part C Emily decides on the arrangement shown below by continuing to transform the
triangle. The edges of the border are parallel. Name three pairs of congruent
angles. Use angle relationships to explain why they are congruent. Identify a set
of supplementary angles.

glide reflection.

its mainly because the pattern will be infinite and will never end. it will look like a gilder or like a filpbook when set to motion.

the answer for this question is : 360°

step-by-step explanation:

we have been given a triangle   we need to tell which one of these is a triangle below to map onto itself.

360° rotation is the complete rotation which eventually leads to the same figure which is given.

the correct will be, that is 360° that will cause the triangle below to map onto itself.