Polygon PQRS is a scaled copy of polygon ABCD. Segment lengths are given in units. A, B is vertical 1 down. B, C is a diagonal down 1, right 1. C, D is a diagonal right 1, up 2. D, C is horizontal left 2. P, Q is vertical 1.5 down. Q, R is a diagonal down 1.5, right 1.5. R, S is a diagonal right 1.5, up 3. S, P is horizontal left 3. Name the angle in the scaled copy that corresponds to angle ABC. Name the segment in the scaled copy that corresponds to segment AD. What is the scale factor from polygon ABCD to polygon PQRS?