Use the congruent angles to write the corresponding vertices in order. .

Now write the similarity proportions of sides to find x.

               (Write the similarity proportion)

                (Substitute )

          (Cross products)

                (Multiply)

                       (Divide each side by 27)

Since , the measure of DF is 14.

Scale factor is the ratio of the lengths of any two corresponding sides.

So, .

, , , and scale factor is .