joshrankin11 joshrankin11 12-12-2017 Mathematics contestada ? ΔPQR has vertices at P(2, 4), Q(3, 8) and R(5, 4). A similarity transformation maps ΔPQR to ΔABC, whose vertices are A(2, 4), B(5.5, 18), and C(12.5, 4). What is the scale factor of the dilation in the similarity transformation?