Given \(\triangle DEF\ :\ \triangle RST\), find the scale factor.

The required scale factor

Step-by-step explanation:

Formula :

Here, ED = 3 units  in Δ DEF which corresponding to SR = 4 units in ΔRST

Now,

Scale factor for the given transformation =

hence, the required scale factor

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right