Question

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

Answer 1

Answer: The required scale factor
`=\frac43`

Explanation:

Formula :
`\text{Scale factor }=\frac{\text{Side in image}}{\text{Corresponding side in pre-image}}`

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

Now,

Scale factor for the given transformation =
`(SR)/(ED)`

`=(4)/(3)`

hence, the required scale factor
`=\frac43`