Question

How do i find the scale factor?

Answer 1

Suppose you have two similar figures , one larger than the other. The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure

Answer 2

Well...

generally to find scale factor you need to find how much larger or smaller the new image compared to the original. If it is larger it is represented as a ratio (example 1:2), if it is smaller it is represented as a fraction (example 1/2).

An example of finding scale factor would be a square with all the side lengths being 4cm (as the original) and the new square having all side lengths of 8 cm.

The scale factor would be 1 : 2 because the new image is 2 times the size of the original.