Question

Melissa drew two triangles; triangle ABC and triangle PQR, on a coordinate grid. The coordinates of the vertices of triangle PQR are P(3, 3), Q(3, -1), and R(9, -1). The coordinates of the vertices of triangle ABC are A(2, 9), B(2, 5), C(8, 5).

Which postulate can be used to prove that the two triangles are congruent?

answer choices in pic below

Answer 1

Oh and it is not answer C because i put that and got it wrong last time.

Answer 2

A is the answer.