Answer:
C.
![(6)/(5)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/ideat4s8dyp3lwxsno7y3dxlkmrcthmjsy.png)
Explanation:
The ratio of the corresponding sides of a polygon is said to be equal. The ratio gives us the scale factor.
Therefore, assuming that quadrilateral QRST was the original polygon that was scaled up to give a similar polygon, EDGF, the scale factor would be expressed as
![(42)/(35)](https://img.qammunity.org/2021/formulas/mathematics/college/isltxat0b52e1krv74dwxsftiabze866tz.png)
The scale factor =
![(42)/(35) = (6*7)/(5*7) = (6)/(5)](https://img.qammunity.org/2021/formulas/mathematics/college/zk8m16v57lnqk0bfgb5ejbjmb6f7zexi33.png)