The vertices of δmno are m (1, 3), n (4, 9), and o (7, 3). the vertices of δpqr are p (3, 0), q (4, 2), and r (5, 0). which conclusion is true about the triangles?

options:
the ratio of their corresponding sides is 1: 2.
the ratio of their corresponding angles is 1: 2.
they are similar by the definition of similarity in terms of a dilation.
they are congruent by the definition of congruence in terms of rigid motions.