Help appreciated!!!

Consider a dilation of polygon ABCDEF from center O with scale factor r resulting in its image, polygon A'B'C'D'E'F'.

If EDC measures 117° then the measure of E'D'C' is___ If AB measures 1.8 inches and A'B' measures 4.5 inches, then the scale factor r is____

Name one segment from polygon ABCDEF and one segment from polygon A'B'C'D'E'F' that are parallel.​